International Journal of Statistical Distributions and Applications

Volume 7, Issue 4, December 2021

  • Divide China's Economic Regions in 2019 Based on Cluster Analysis and Principal Component Analysis

    Zhichao Zhan, Yongquan Jin, Meihua Dong

    Issue: Volume 7, Issue 4, December 2021
    Pages: 83-88
    Received: 5 July 2021
    Accepted: 26 July 2021
    Published: 5 November 2021
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    Abstract: In recent years, China's economic development has been very rapid. While China is developing rapidly, each province has contributed its share, but in different regions, economic development is different. Different regions must have advantages in different aspects, so in order to divide China's 31 provinces into different categories. In order to get... Show More
  • Predictors for Risk Factors of Diabetes: Binary Logistic Regression Model Approach

    Usman Aliyu, Abubakar Umar Bashar, Umar Usman

    Issue: Volume 7, Issue 4, December 2021
    Pages: 89-94
    Received: 15 August 2021
    Accepted: 22 September 2021
    Published: 10 November 2021
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    Abstract: Although Diabetes is a metabolic disease that cause high blood sugar to mostly people of age 45 years and above whose body either doesn’t make enough insulin or can’t effectively use the insulin it does make. This research use Binary Logistic regression model to analyze predictors for risk factors of Diabetes in Kebbi state as well as build a suita... Show More
  • An Analysis of Corona Virus Disease (COVID-19) Predictors: Logistic Regression Model Approach

    Usman Aliyu, Abubakar Umar Bashar, Umar Usman

    Issue: Volume 7, Issue 4, December 2021
    Pages: 95-101
    Received: 15 August 2021
    Accepted: 17 September 2021
    Published: 19 November 2021
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    Abstract: Although Corona Virus disease (COVID-19) is a contagious disease cause by severe acute respiratory syndrome which affects mostly people whose immune system are weak or not resistance to the disease, there exists no vaccine that is 100% effective for its cure though efforts are being intensify by researchers in discovering the vaccine as well as mod... Show More
  • On Some Models for Wind Power Assessment in Yola, Nigeria

    Gongsin Isaac Esbond, Funmilayo Westnand Oshogboye Saporu

    Issue: Volume 7, Issue 4, December 2021
    Pages: 102-107
    Received: 25 September 2021
    Accepted: 21 October 2021
    Published: 23 November 2021
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    Abstract: Probability distributions are used in the evaluation of wind energy potentials to describe the wind speed characteristics of the chosen location for wind farm establishment. However, the Weibull distribution that is the most chosen by wind energy modelers may likely fail to properly describe the wind speed data of certain locations, or it may not b... Show More
  • Likelihood-Based Confidence Intervals for the Parameters of a Simple Linear Regression Model with Cauchy Errors

    Orawo Luke Akongo

    Issue: Volume 7, Issue 4, December 2021
    Pages: 108-114
    Received: 21 October 2021
    Accepted: 12 November 2021
    Published: 24 November 2021
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    Abstract: The estimators of the slope and the intercept of simple linear regression model with normal errors are normally distributed and their exact confidence intervals are constructed using the t-distribution. However, when the normality assumption is not fulfilled, it is not possible to obtain exact confidence intervals. The Wald method of interval estim... Show More