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Prof.

OLAYIWOLA, Olaniyi Matthew 

ResearchGate

Short Profile

Olaniyi Mathew OLAYIWOLA is a Professor in the Department of Statistics, College of Physical Sciences, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria. He is an Alumnus of Kwara State Polytechnic, Ilorin, The Polytechnic, Ibadan, University of Ibadan, Nigeria and University of Ilorin. He obtained National Diploma (ND) in Statistics in 1995, Higher National Diploma (HND) in Statistics in 1998, Postgraduate Diploma in Statistics in 2002, Postgraduate Diploma in Education in 2006, Bachelor of Science (B.Sc.) degree in Statistics in 2010 from University of Ilorin and Master of Science (M.Sc.) in Statistics from the University of Ibadan in 2005. He obtained Doctor of Philosophy (Ph.D) degree in Statistics at the University of Ibadan Nigeria in 2011. Prof. Olaniyi Mathew OLAYIWOLA was born in Ilora, Oyo, Oyo State on October 3, 1976, and hails from Ilora , Oyo, in Oyo state, Nigeria. He rose through the ladder of academic process as Assistant Lecturer (Statistics) in 2007 to his present position as a professor. As an erudite scholar, he has a great wealth of research experience which culminated into several academic publications. Dr. Olayiwola has supervised more than twenty (20) postgraduate students to completion while five (5) others are at various stages of completion. He is a reliable and diligent staff. He has served creditably well in various capacities, including as member of the College Committee on Results (COCER) and ADMICO. Prof. Olayiwola was the Head of the Department of Statistics from 2019 -2023. He is hardworking, meticulous and committed to his duty. He has attended many local and international conferences and workshops. He belongs to many Professional bodies including the Science Council, United Kingdom (as Chartered Scientist), the Royal Statistical Society, United Kingdom (as Chartered Statistician), International Association of Survey Statisticians (as a member), International Association for Official Statistics (as a member) and member Nigerian Statistical Association. He received Royal Statistical Society’s 2020 Mardia award for Covid-19 response in Nigeria and many others for promoting Statistical knowledge. Professor O. M. Olayiwola is currently on sabbatical at University of Kent, England, United Kingdom

1. Doctor of Philosophy (Ph.D) in Statistics 2011
2. Bachelor of Science, B.Sc (Hons) in Statistics 2010
3. Post Graduate Diploma (PGD) in Education 2006
4. Master of Science (M.Sc) in Statistics 2005
5. Post Graduate Diploma (PGD) in Statistics 2002
6. Higher National Diploma (HND) in Mathematics and Statistics 1998
7. National Diploma (ND) in Statistics 1995
8. Senior Secondary School Certificate

(i) Complete:
(ii) In progress: Development and Validation of a model for Covid-19 carriers contact tracing.

1. The Royal Statistical Society, London, 2020 Mardia prize to support Covid-19 response in Nigeria.
https://rss.org.uk/news-publication/news-publications/2021/general-news/2020%C2%A0mardia-prize-to-support%C2%A0covid-19-response-in/

2. Past Earth Network (University of Leeds, England, United Kingdom) prize to organize an outreach in Nigeria on Anhropogenic Climate Change: Management and Modelling, February 3, 2017, funded by Engineering and Physical Sciences Research Council (EPSRC), https://www.pastearth.net/outreach.htmlhttps://www.pastearth.net/conferences.html
3. International Association of Survey Statisticians price for promoting Statistical knowledge (2019 – present)
4. Royal Statistical Society prize for promoting Statistical knowledge (2019 – present) www.rss.org.uk/nigeria
5. Turing Gateway to Mathematics grants to attend 3rd Edward Symposium on Soft Matter, September 5 – 7, 2018 held at Centre for Mathematical Sciences, Cambridge, United Kingdom
6. The Royal Statistical Society grants to attend 2016 Annual International Conference of the Royal Statistical Society, 5th of September to 8th of September 2016, held at University Place, University of Manchester, United Kingdom.
7. Maths Foresee grants to attend General Assembly of Maths Foresee, 5th -7th September 2016, held at St Leonard’s Hall, Edinburgh EH16 5AY, United Kingdom
8. SECURE launch grants to attend SECURE launch conference, 11th of September, 2015 , held at University of Glasgow, United Kingdom,
9. Past Earth Network grants to attend Past Earth Network (University of Leeds) Conference, 1st of September to 4th of September 2015, held at Crewe Hall, United Kingdom.
10. Royal Statistical Society grants to attend 2014 Annual International Conference of the Royal Statistical Society, 1st of September to 4th of September 2014 held at Sheffied, United Kingdom.
11. Royal Statistical Society grants to attend Royal Statistical Society 2013 Annual International Conference, 2nd of September to 5th of September 2013, held at Nurthumbria University, Newcastle Upon Tyne, United Kingdom.
12. Royal Statistical Society grants to attend 2012 Annual International Conference of the Royal Statistical Society, 3rd of September to 6th of September, 2012 held at Telford International centre, United Kingdom.
13. Royal Statistical Society grants to attend 2008 Annual International Conference of the Royal Statistical Society, 1st of September to 5th of September, 2008, held at East Midland Conference Centre Nottingham, United Kingdom.
14. Ilora Baptist Grammar School award for Best Student in over all subjects 1992
15. Ilora Baptist Grammar School award for best student in Mathematics 1992
16. L.A. School, Gbajigbo award for best Student in over all subjects 1986

1. Chartered Scientist (CSci), The Science Council, United Kingdom
2. Chartered Statistician (CStat), The Royal Statistical Society, United Kingdom
3. Fellow, Royal Statistical society (FRSS), London, United Kingdom
4. Member, International Association for Official Statistics (section of International Statistical Institute)
5. Member, International Association of Survey Statisticians (section of International Statistical Institute)
6. Member, Past Earth Network, University of Leeds, United Kingdom https://www.pastearth.net/index.htmlhttps://www.pastearth.net/members.html
7. Member, Statistics of Environmental Change, Resources and Ecosystems, University of Glasgow, United Kingdom
8. Member, Maths Foresees Network, University of Leeds, United Kingdom https://www1.maths.leeds.ac.uk/mathsforesees/partners.html
9. Member, International Biometric Society (Group Nigeria)
10. Member, Nigerian Statistical Association

1. Wale-Orojo and Olayiwola O. M (2021) Modeling rare events in an Adaptive Cluster Sampling Design with heterogeneity among networks and within network units, 2021 International Conference of the Royal Statistical Society, Manchester, England, United Kingdon, September 6 – 9, 2021
2. Olayiwola O.M., Audu A, Olawoyin I. O., Olawoore S. A, Ibrahim A (2020) A Class of Ratio Estimators of a Finite Population Mean Using Two Auxiliary Variables Under Two-Phase Sampling Scheme. 1st Annual Conference of the Royal Statistical Society Nigeria Local Group (RSS-NLG), February 5 – 6, 2020 held at Federal University of Agriculture, Abeokuta, Nigeria
3. Olayiwola O.M. (2018). Royal Statistical Society 2018 Annual International Conference, Cardiff City Hall, United Kingdom. 5th of September to 6th of September 2018
4. OlayiwolaO.M. (2017). Modelling Climate variables. Royal Statistical Society 2017Annual International Conference, University of Strathclyde, Glasgow, United Kingdom.4th of Septemberto7th of September, 2017.
5. Olayiwola O.M. (2016). Efficiency of Some Exponential Estimators for Estimating Heterogeneous Population Parameters. Royal Statistical Society 2016 Annual International Conference, University Place, University of Manchester, United Kingdom. 5th of September to 8th of September 2016
6. Maths Foresee General Assembly, 5th -7th September 2016, St Leonard’s Hall, Edinburgh EH16 5AY, United Kingdom
7. SECURE LAUNCH EVENT CONFERENCE, University of Glasgow, United Kingdom, 11th of September, 2015
8. Past Earth Network Conference, University of Leeds held at Crewe Hall, 1st of September to 4th of September 2015
9. Olayiwola O.M (2015) Vector Autoregressive Model for Monitoring Carbondioxide (CO2) Emission from the Consumption of fossil fuels.Royal Statistical Society 2015 Annual International Conference, University of Exeter, United Kingdom. 7thof September to 10th of September 2015.
10. Apantaku F.S. Olayiwola O.M, Adewara A.A (2014): Optimum allocation of multi-items in stratified random sampling using principal component analysis. Royal Statistical Society 2014 Annual International Conference, Sheffied, United Kingdom. 1st of September to 4th of September 2014.
11. Olayiwola O.M., Apantaku F.S, Bisira H.O, and Adewara A.A (2013): Efficiency of Neyman Allocation Procedure over equal and Proportional allocation procedures in Stratified Random Sampling. Royal Statistical Society 2013 Annual International Conference, Newcastle Upon Tyne, United Kingdom. 2nd of September to 5th of September 2013
12. Olayiwola O. M., G.N. Amahia, O.A. Oyegunle and A.A. Adewara (2012). Determination of Broiler Chicken’s maximum weight with respect to age and feeding rate. Royal Statistical Society 2012 Annual International Conference, Telford International centre, United Kingdom. 3rd of September to 6th of September, 2012.
13. Okunlade A.A and Olayiwola .O.M. (2008). The Multivariate Analysis of students’ Academic Performance in Nigerian Universities. Royal Statistical Society 2008 Annual International Conference, East Midland Conference Centre Nottingham, United Kingdom. 1st of September to 5th of September, 2008.

1. Gali, M.O, Adewara, A.A. Oladosu, M.O., Olayiwola, O.M. and Nafiu, L.A. (2008): On Efficiency of Some Combined Ratio Estimators in Stratified Random Sampling,Journal of Modern Mathematics and Statistics 2 (5): 170-173. Published by Medwell Journals, Pakistan. www.medwellonline.net

2. Oladosu M.O., Adewara, A.A. and Olayiwola O.M (2008): An Application of Kadilar and Cingi combined stratified ratio estimator to combined regression stratified estimator. Journal of Mathematical Sciences, 19(2), 179-185. Indian

3. Akomolafe. A. A, Olayiwola O.M., and Bello, O. A. (2008). Using Multivariate Analysis to Identify Students at risk in Nigerian Universities’ Journal of Educational Research and Policies, 3(4), 87 – 91. Published by Duncan Science Company, Nigeria.

4.Olowokere, C.J, Olayiwola O.M, Odina G. (2009). Comparison of five models for assessing Patient Dose From Radiological Examinations African Journal Biomedical Engineering, 1, 21-29. Published by Afrobiomedical Engineering and Science, Nigeria.

5.Olayiwola O.M, Amahia, G. N., Adepoju, A.A., Salawu, O.O.(2010). Longitudinal Survey Participation Patterns in the South Western Region of Nigeria. International Journal of Social Sciences. 2 (1), 88 – 94. Published by Pan African Book Company, Ghana.
6.Olayiwola O.M., Amahia, G.N, Adewara, A.A. and Chukwu, A.U. (2011): Application of Response Surface Methodology for Capturing Optimum Response in a LongitudinalSurvey, International Journal of Applied Science and Technology. 1 (5), 171-176. Published by Centre for Promoting Ideas, USA . www.ijastnet.com.

7.Olayiwola O.M., Salawu, O. O., Oyenuga, I.F. Oyekunle, J. O. Ayansola, O. A. Olajide, J.T. and Agboluaje, S. A. (2011):On Statistical Analysis Of impact of Socio Economic Factors On Students’ Academic Performance, International Journal of Research and Reviews in Applied Sciences, Pakistan, 8(3), 395-399. www.arpapress.com/Volumes/Vol8Issue3/IJRRAS

8.Olayiwola O.M., Amahia, G.N and Adewara, A.A. (2011) Survey Response across various levels of response predictors in some selected communities in Oyo town, Oyo State, Nigeria, Elixir Statistics, 36, 3241 – 3244. Published by Elixir International Publishers, Indian www.elixirjournal.org
9.Olayiwola O.M, Adewara, A.A. and Amahia, G. N.(2011) On the effect of daily average reading and sleeping hours on students’ cumulative Grade point Average (CGPA) Elixir Statistics, 34, 2371 – 2374. Published by Elixir International Publishers, Indian www.elixirjournal.org

10.Dawodu. O.O, A.A. Adewara and Olayiwola O.M, (2011),: Efficiency of Alodat Sample Selection Procedure over Sen – Midzuno and Yates – Grundy Draw by Draw under Unequal Probability Sampling Without Replacement Sample Size 2.,Journal of Mathematics Research, Canada. 3 (2), 113 – 118, Published by Canadian Center for Education, www.ccsenet.org/jmr

11.Olayiwola O.M, Amahia, G.N. and Adewara, A.A. (2011) On Patterns Of Refusals Conversion And Propensity Of Converted Refusals To Respond At Later Waves In A Longitudinal Survey. Journal of Mathematics Research, Canada, 3 (1), 121 – 124. Published by Canadian Center for Education, www.ccsenet.org/jmr

12.Olayiwola O.M. Agboluaje, S.A, Salawu O.O. and Fantola, J.O. (2012): On double sampling approach for comparing estimates of students’ enrolment in Oyo state public secondary schools, Elixir Statistics, 43, 6994-7003. Published by Elixir International Publishers, Indian www.elixirjournal.org

13.Oyegunle, O. A., Amahia, G. N. Olayiwola O. M. and Adewara, A. A. (2012): Application of factorial design and response surface methodology on growth rate of broiler chickens served with fluted pumpkin leaves extract, Indian, Elixir Statistics, 43, 6839-6842. Published by Elixir International Publishers, Indian www.elixirjournal.org
14.Olayiwola, O.M, Agboluaje,S.A., Salawu, O.O. and Fantola, J.O. (2012) Patterns of response and non-response in longitudinal survey of Oyo Community, Oyo state, Nigeria. Elixir Statistics,49 (2012) 9817-9820.Published by Elixir International Publishers, Indian www.elixirjournal.org

15.Apantaku F.S. Olayiwola O.M, andAdewara A.A (2013): Optimum allocation of multi-items in stratified random sampling using principal component analysis. American Journal of Theoretical and Applied Statistics; 2 (5), 142-148. Published by Science Publishing Group,NY,USA.http://articl;e.sciencepublishinggroup.com/pdf/10.11648.j.ajtas.20130205.14.pdf

16.Olayiwola O.M, Apantaku F.S, Bisira H.O, and Adewara A.A (2013): Modelling Optimum Response in a Longitudinal Survey, Global Journal of Science Frontier Research, 13 (8), 105 – 115. Published by Global Journal Inc, Wakefield, Massachusetts (MA), USA. http://journalofscience.org/index.php/GJSFR/article/view/978/843

17.Olayiwola O.M, Apantaku F.S, Bisira H.O, and Adewara. A.A (2013): Prediction of Stock Price using Autoregressive Integrated Moving Average, Global Journal of Science Frontier Research, 13 (8), 79 – 87. Published by Global Journal Inc, Wakefield, Massachusetts (MA), USA. http://journalofscience.org/index.php/GJSFR/article/view/976/841

18.Olayiwola O.M, Apantaku F.S, Bisira H.O, and Adewara A.A (2013): Efficiency of Neyman allocation procedure over other allocation procedures in stratified random sampling, American Journal of Theoretical and AppliedStatistics; 2 (5), 122-127. Published by Science Publishing Group, NY, USA. http://articl;e.sciencepublishinggroup.com
19.Agwuegbo S. O.N, Adewole A.P, Olayiwola O.M, and Apantaku F.S,(2014):Signal Model for the Prediction of Wind Speed In Nigeria, Journal of Energy Technologies and Policy. 4 (6), 38 – 44. Published byThe International Institute for Science, Technology and Education and University of North Carolina, Charlotte, United States.www.iiste.org

20.Agwuegbo S. O.N, Adewole A.P, Olayiwola O.M, and Apantaku F.S, (2014): State-Dependent Model for the Analysis of Inflationary Rates. Mathematical Theory and Modeling, 4 (7), 84 – 89. Published by The International Institute for Science, Technology and Education, University of North Carolina, Charlotte, United Stateswww.iiste.org

21.Apantaku F.S., Asiribo O.E, Adelakun A. A., Amahia G.N and Olayiwola O.M, (2014): Optimum allocation in stratified and post stratified sampling designs. Elixir Statistics, 67 (2), 21836 -21845. Published by Elixir International Publishers, Indian. www.elixirjournal.org
22.Olayiwola, O.M., Lawal. G. O. Amalare, A.A , Agboluaje, S. A, and Fantola, J. O (2015) Analysis of Nigeria Gross Domestic Product Using Principal Component Analysis. Journal of Advances in Mathematics.10 (6), 3547 – 3555. Published by Council for Innovative Research, USA, www.cirjam.com

23.Olayiwola, O.M., Lawal. G. O. , Amalare, A.A , Agboluaje, S. A, and Fantola, J. O (2015) Modelling Nigeria Population Growth Rate. Journal of Advances in Mathematics. 10 (6), 3567 -3574. Published by Council for Innovative Research, USA. www.cirjam.com

24.Olayiwola, O. M., Agwuegbo S. O.N, Bisira, H.O, Aderele. O. R, and Adeniyi, M. O.(2015) Vector Autoregressive Model for Monitoring Carbondioxide (CO2) Emission from the Consumption of fossil fuels. Elixir Statistics, 78, 29844 – 29852. Published by Elixir International Publishers, Indian. www.elixirjournal.org

25.Olayiwola, O. M., Bisira, Wale-Orojo O.A, Aderele. O. R, and Adeniyi, M. O.(2015). Modelling relationship between students’ pre and post admission performances. Elixir Statistics, 78, 29853 – 29858. Published by Elixir International Publishers, Indian. www.elixirjournal.org
Akintunde, A.A., Agwuegbo, S.O.N., Waheed, M.A., Asiribo, O.E., and

26.Olayiwola O.M. (2015). Modelling Nonlinear Dynamical Systems. Annals. Computer Science Series. Volume13, issue 1, 30-38. Tibiscus University of Timisoara, Romania.

27.Olayiwola O.M., A.A. Adewara, and T.O. Ayeleso (2015): A Modified Exponential Ratio-Type Estimator in Stratified Ranked Set Sampling .The Pacific Journal of Science and Technology, Volume 16. Number 2. November 2015 (Fall) , 82-89, http://www.akamaiuniversity.us/PJST.htm

28.Olayiwola O.M., F.S. Apantaku, A. A. Adewara and A.F. Gboyega (2015) Modified Ratio Estimator Using Multiple Auxiliary Variables. The Pacific Journal of Science and Technology, Volume 16. Number 2. November 2015 (Fall), 108 -113http://www.akamaiuniversity.us/PJST.htm
Olayiwola O. M., and Ayeleso T. O (2015) Efficiency of Some Exponential Estimators for Estimating Heterogeneous Population Parameters. Annals. Computer Science Series.,Volume13, series 2, 47-54. Tibiscus, University of Timisoara, Romania. http://www.anale-informatica.tibiscus.ro

29.Olayiwola O.M., F.S. Apantaku and Ajayi A. O.(2015) Comparison Of Estimates On Two Occasions Involving Stratification Using Successive Sampling.Annals. Computer Science Series. Volume13, series 2, 94-102. Tibiscus University of Timisoara, Romania, http://www.anale-informatica.tibiscus.ro
Asiribo O. E, Isah A., Olayiwola, O.M. and Kanwai M.E (2015) Use of Auxiliary Variables and Asymptotically Optimum Estimator to Increase Precision, Journal of the Nigerian Statistical Association, volume 27, pg 30 – 40. Published by the Nigerian Statistical Association.

30.Olayiwola O. M., Popoola R. A and Bisira H. O (2016) A Modified Regresion Estimator For DoubleSamplling. Annals. Computer Science Series. Volume14, series 1, 44-49. Tibiscus University of Timisoara, Romania, http://www.anale-informatica.tibiscus.ro

31.Olayiwola O.M., Adewara A.A. and H.O. Bisira H. O (2016) Influence of Social Demographic Characteristics on Respondents’ Responses in a LongitudinalSurvey.The Pacific Journal of Science and TechnologyVolume 17. Number 1. May 2016 (Spring), 89-97. http://www.akamaiuniversity.us/PJST.htm
Dawodu G.A, Agwuegbo, S.O.N, Olayiwola O.M, Akintunde A.A, Wale-Orojo O.A and Yusuff K.M (2018), A Bayessian Approach Towards Capturing the Vulnerability to Toxicity of Some Artisans’ Blood, Journal of the Nigerian Association of Mathematical Physics, volume 44, pg 185 – 190. Published the Nigerian Association of Mathematical Physics.

32.Akintunde A. A., Olayiwola O. M., AgwuegboS. O. N., Dawodu G. A. (2016) Stochastic Signal Modeling of Economic Indicators. The Pacific Journal of Science and TechnologyVolume 17. Series 2. November 2016 (Fall), 213-217. Published by Akamai University. http://www.akamaiuniversity.us/PJST.htm.
Akinwunmi F., Akinhanmi T.F. Atobatele Z.A., Adewole O., Odekunle K., Arogundade L.A. Odukoya O.O, Olayiwola . O.M. Ademuyiwa O. (2016) Heavy metal burdens of public primary school children related toplayground soils and classroom dusts in Ibadan North-West localgovernment area, Nigeria. Elsevier Journal of Environmental Toxicology and Pharmacology 49 (2016) 21–26, www.elsevier.com/locate/etap
33.Olayiwola, O.M., Ajayi A.O., and Adegoke, S.A. (2016) On a Modified Regression-Ratio type Estimator for homogeneous and heterogeneous populations.African Journal of Science and Nature. Volume 2, 12-15. Published by Olabisi Onabanjo University Ago-Iwoye, Ogun State, Nigeria. http//www.journal.oouagoiwoye.edu.ng
34.Olayiwola, O. M., Ajayi, A.O. and Okunlade, A A (2016) A Modified Post-Stratified Regression Estimator for two occasions and using two variables. African Journal of Science and Nature. Volume 2, 24-28. Published by Olabisi Onabanjo University Ago-Iwoye, Ogun State, Nigeria.. http//www.journal.oouagoiwoye.edu.ng

35.Olayiwola O. L, Ojebode T.O, Adekanye O.S, Olayiwola O.M., Idris. O (2016) Socio-demographic and behavioural correlates of the malaria prevention methods utilized by families of under-five children diagnosed with malaria malaria at Baptist Medical Centre, Saki. Nigerian Journal of family practice, volume 7, No 3 gg 43 – 58, published by the society of Physicians of Nigeria. . http://www.ajol.info.article.view

36.Olayiwola O.M, Amalare.A.A and Ajayi A.O (2016): A Modified Multivariate Family Of Estimators. FUNAI Journal of Science and Technology.1(1), 2016, 97-104Published by Federal University of NdufuAlike Ikwo Abakaliki, Nigeria.

37.Olayiwola O. M, Amalare A.A and Olaoye O. R (2017): Modelling Climate Variables, Journal of Nigeria Association of Mathematical Physics. volume 39 pp 497 – 484. Published by Nigeria Association of Mathematical Physics
Wale-Orojo O.A, Olayiwola O.M, Yusuff K.M. and Olawore.S.A (2017): Comparison of Stratified Diagonal Rank Set Sampling and Stratified Simple Random Sampling Estimators. Journal of Nigeria Association of Mathematical Physics, volume 40, pp 173-176. Published by Nigeria Association of Mathematical Physics

38.Olayiwola O. M, Apantaku F.S and Sohe E. M (2017): A stratified randomized response technique for addressing sensitive questions in survey, Transactions of the Nigeria Association of Mathematical Physics,volume 3, pp143 -150. Published by Nigeria Association of Mathematical Physics.

39.Dawodu G.A, Olayiwola O.M, Asiribo O.E(2018), On Bayesian Analysis of Univariate Longitudinal Clinical Data(ULCD), The Pacific Journal of Science and TechnologyVolume 19. Series 1. May 2018 (Spring). Published by Akamai University.http://www.akamaiuniversity.us/PJST.htm

40.Akintunde A.A, Agwuegbo S.O. N. and Olayiwola O.M (2017): Markov Models for the Analysis of Dynamical Systems. Journal of Natural Sciencies, Engineering and Technology, volume 16 number 1. Publisher: Federal University of Agriculture, Abeokuta

41.Olayiwola O.M.,Apantaku F.S,Wale-Orojo O.A., Ajayi A.O.,Konku A.M. (2019) PROBABILITY PROPORTIONAL TO SIZE (PPS) METHOD TO ENHANCE EFFICIENCY OF ESTIMATOR IN TWO STAGE SAMPLING. Annals.ComputerScienceSeries.Volume17, series2,315- 321.TibiscusUniversityofTimisoara,Romania,http://www.anale-informatica.tibiscus.ro
Peter I. Ogunyinka, Emmanuel F.Ologunleko, B.T.Efuwape, O.M.Olayiwola, Dawud A. Agunbiade (2019). EFFICIENCY OF DATA TRANSFORMATION AND CORRECTION FACTOR METHODS ON THE CORRECTION OF EXTREME VALUE EFFECT IN SAMPLE SURVEY THEORY. Annals.ComputerScienceSeries.Volume17,series2,272- 282TibiscusUniversityofTimisoara,Romania,http://www.anale-informatica.tibiscus.ro
Tajudeen Adeniji Adetunji, Olusegun Folorunso, Olufunke Rebecca Vincent, Olaniyi Mathew Olayiwola (2019). Stemming anomaly propagation in software systems using ontology, Journal of Computer Science and Its Application, volume 26, 2, 158- 127. Published by Nigeria Computer Society. https://www.ajol.info/index.php/jcsia/article/view/193195
Amalu P.C, Okonkwo C. O, and Olayiwola. O. M (2019).Verification of the Accuracy of an Instrument Landing System’s Localizer: A Study of an International Airport in Nigeria, ThePacificJournalofScienceandTechnologyVolume2o.Series2. 68 – 75.PublishedbyAkamaiUniversity.http://www.akamaiuniversity.us/PJST.htm

42.Olayiwola. O. M., Ajayi.A.O, Aderibigbe.T.A, Nurudeen.T.S and Akintola.K.A (2019). A Modified Estimator in Adaptive Cluster Sampling. Journal of Nigeria Association of Mathematical Physics, volume 51, pp113-118. Published by Nigeria Association of Mathematical Physics

43.Dawodu. G. A, Mustapha. A. O and Olayiwola. O. M (2020) Radon Concentration using Zero Inflated Negative Binomial (ZINB) Modeling. The Pacific Journa lof Science and Technology Volume21.Series1May2020 (Spring). Published by Akamai University.http://www.akamaiuniversity.us/PJST.htm

44.Olayiwola. O. M, Ajayi. A. O, Akintunde. A. A, Wale-Orojo. O. A, Ajibade. F. B, and Ojelabi. O (2020). Estimation of the Population Mean in the Presence of Measurement and Response Error, Annals. Computer Science Series.Volume18series1,48- 52. Tibiscus University of Timisoara, Romania, http://www.anale-informatica.tibiscus.ro
Apantaku,F.S.,Olayiwola, O.M., AkintundeA. A. and ADEYEMO,R.G (2020) AMODIFIED ESTIMATOR FOR QUARTILE RANKED SET SAMPLING. Journal of Nigeria Association of Mathematical Physics, volume56, Published by Nigeria Association of Mathematical Physics

45.Olayiwola O. M, Akintunde A.A. Wale-Orojo A. O., Ajibade F. B.and Adekpe D. O. (2020) JACKKNIFE APPROACHES FOR IMPROVIMG DATA QUALITY. Transactions of the Nigeria Association of Mathematical Physics, volume11, Published by Nigeria Association of Mathematical

46.Isqeel I. A., Olayiwola O. M., Sowola B. O (2020): Modelling Unemployment Rates in Nigeria using Time Series Approach. Asian Journal of Mathematical Sciences. 4 (2), 4 -9. Published by Mandsaur University, Mandsaur. Available online at http://www.ajms.in/index.php/ajms/issue/view/25
Ekong, A. H., and Olayiwola O. M. (2020): A geographically weighted regression approach to examine the dynamics of fertility differentials across Africa. Statistical Journal of the International Association for Official Statistics. Published by International Association for Official Statistics, United States. 36 (1), 87–102. Published by Available online at: (https://content.iospress.com/articles/statistical-journal-of-the-iaos/sji200717) Indexed in Scopus and Scimago

47.Olayiwola. O. M., Apantaku, F. S., Oyekunle, K. A., Akintunde, A. A., Wale-Orojo, O. A. and Olawoore, S. A. (2020): A Modified Calibration Approach for Ratio Estimator in Stratified Sampling. Federal University Dutsin-Ma Journal of Sciences (FJS). 4 (4), 507 – 512. Published by Federal University Dutsin-Ma, Katsina State Nigeria. Available online at https://www.fjs.fudutsinma.edu.ng/index.php/fjs/issue/view/5

48.Olayiwola O. M., Ajayi A. O., Onifade O. C., Wale-Orojo O. A. and Ajibade B. (2020): Adaptive cluster sampling with model based approach for estimating total number of hidden COVID-19 carriers in Nigeria. Statistical Journal of the International Association for Official Statistics., 36 (1), 103 – 109. Published by International Association for Official Statistics, United States. Available online at: (https://content.iospress.com/download/statistical-journal-of-the-iaos/sji200718?id=statistical-journal-of-the-iaos%2Fsji200718. Indexed in Scopus and Scimago

49.Olawoyin I. O., Ahmed A, Olayiwola O. M., Abdulazeez S.A (2021): Chain Ratio-Type Estimator of Finite Population Mean Under Two-Phase Sampling in Systematic Sampling Scheme. Annals of Optimization Theory and Practice. 4 (1), 15 – 28. Published by Firouzabad Institute of Higher Education, Iran. Available online at http://aotp.fabad-ihe.ac.ir/article_129425.html

50.Olayiwola, O. M., Adekeye, K. S., Apantaku F. S., Ajayi A. O. , Wale-Orojo O. A., Ogunsola I. A. and Hammed B. (2021): Integration of Bayesian Model and Adaptive Clustered Sampling into Contact Tracing to curb the spread of Covid -19 Cases. Federal University Dutsin-Ma Journal of Sciences (FJS). 5 (1), 76 – 84. Published by Federal University Dutsin-Ma, Katsina State Nigeria. Available online at: https://www.fjs.fudutsinma.edu.ng/index.php/fjs/issue/view/6

51.Mathew Olaniyi Olayiwola, Ishaq Olatunji Olawoyin and Ahmed Audu (2021): New Exponential-Type Estimators of Finite Population Variance Using Auxilliary Information. Sri Lanka Journal of Applied Statistics. Vo;ume 22-2, pp 56 – 76

52.Kayode S. Adekeye, Kelvin E. Igwe and Olaniyi M. Olayiwola (2021): On Pooled OLS and Panel Regression Models for Assessing the Contributions of Electronic Payment System on Commercial Banks Profitability. Journal of Statistics: Advances in Theory and Applications Volume 25, Number 2, 2021, Pages 61-81

53.Olayiwola O. M ., Apantaku F. S., Imarhia F. O., Yusuff K. M., Ogunsola I. A and Olawoore S.A (2022): A Modified Estimator for Population Parameters in the Presence of Outliers, UNIPORT Journal of Engineering and Scientific Research. Publisher: University of Port Harcourt. Volume 6, issue 1, pp 85 – 89

54.Apantaku F. S., Olayiwola O. M., Ajayi A.O., Jaiyeola O. S (2022): A Modified Generalized Chain Ratio in Regression Estimator, Journal of Natural Sciences, Engineering and Technology. Publisher: Federal University of Agriculture, Abeokuta, Nigeria.

55.O. A. Wale-Orojo, O. M. Olayiwola, F. S. Apantaku and A. o. Ajayi (2022): Modelling Rare Events in an Adaptive Cluster Sampling Design with Heterogeneity among Networks and within the Network Units. Sri Lanka Journal of Applied Statistics. Vo;ume 23-2, pp 1 – 28

56.O. A. Wale-Orojo, O. M. Olayiwola, Akintunde A. A. Olawoore S. A, and Igbalajobi M. M. (2022): A Modified Population Mean Estimator in Two Phase-Sampling. UNIPORT Journal of Engineering and Scientific Research. Publisher: University of Port Harcourt. Volume 6, issue 2, pp 44 – 51

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