Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Idika E Okorie"'
Publikováno v:
PLoS ONE, Vol 18, Iss 6, p e0287011 (2023)
We carry out a time series analysis on the yearly crop yield data in six east African countries (Burundi, Kenya, Somalia, Tanzania, Uganda and Rwanda) using the autoregressive integrated moving average (ARIMA) model. We describe the upper tail of the
Externí odkaz:
https://doaj.org/article/72736aad7b9e4b3c8644369e75424e26
Publikováno v:
BMC Research Notes, Vol 14, Iss 1, Pp 1-6 (2021)
Abstract Objective In Africa, most countries continue to battle COVID-19 with cases of newly infected still being recorded. In this note, we investigate how socioeconomic and demographic factors affected individuals awareness on the methods for contr
Externí odkaz:
https://doaj.org/article/26f7aa25b8a04af384f00989c76018bb
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
Abstract We provide a survival analysis of cancer patients in Zimbabwe. Our results show that young cancer patients have lower but not significant hazard rate compared to old cancer patients. Male cancer patients have lower but not significant hazard
Externí odkaz:
https://doaj.org/article/33df765465444e72a6e2ad815d48c1d6
Publikováno v:
Heliyon, Vol 7, Iss 9, Pp e08047- (2021)
By standard transformation of a random variable, we obtained a partially bounded one-parameter version of the bounded three-parameter power function distribution by Saran and Pandey (2004) which we called the Transformed Power Function (TPF) distribu
Externí odkaz:
https://doaj.org/article/4454b7d6a7004c739b6c86fb9911960a
Publikováno v:
Statistika, Vol 17, Iss 2, Pp 99-104 (2017)
The act of violence against wife is condemnable and attracts various legal penalties, globally. This article attempts to find a link between spousal age difference and violence (Emotional, Physical and Sexual) against wives in Nigeria. The result sho
Externí odkaz:
https://doaj.org/article/283dd4005e5d4709be28ac0fe19726a2
Autor:
Saralees Nadarajah, Idika E. Okorie
Publikováno v:
Statistica, Vol 77, Iss 1, Pp 53-63 (2017)
Mukhopadhyay and Cicconetti \cite{mc2004} derived the Maximum Likelihood Estimator (MLE) and the Uniformly Minimum Variance Unbiased Estimator (UMVUE) of $\theta$ in $N (\theta, \theta)$ and discussed their application to purely sequential and two-st
Externí odkaz:
https://doaj.org/article/2a773c8250954a0aa9b5962365eeffc5
Autor:
Saralees Nadarajah, Idika E. Okorie
Publikováno v:
The Mathematical Gazette. 106:487-493
The most important properties of any distribution are its moments. The first four moments, for example, can be used describe any data set fairly well. Moments can also be used for estimation.
Publikováno v:
Heliyon, Vol 5, Iss 8, Pp e02200- (2019)
A two-parameter Rayleigh-geometric distribution with increasing-decreasing-increasing and strictly increasing hazard rate characteristics is reviewed. Various properties are discussed and expressed analytically. The estimation of the distribution par
Externí odkaz:
https://doaj.org/article/7946a7c84dff4757839d921d9981b204
Autor:
Idika E. Okorie, Emmanuel Afuecheta
Publikováno v:
Annals of Data Science.
Publikováno v:
Computational economics.
Research on the exchange rate volatility and dynamic conditional correlation of African currencies/financial markets interdependence appears to be limited. In this paper, we employ GARCH models to characterize the exchange rate volatility of eight ma