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Probability Distributions
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Multivariate Analysis
Sampling
Tuesday 20 February 2024
Understanding Point and Interval Estimation: A Comprehensive Guide with example
Introduction: Point and interval estimation are fundamental concepts in statistics, providing us with tools to make informed inferences abou...
Monday 2 November 2020
Population and Sample
W hen we are working with data, we usually work with samples since it is too difficult, time consuming and expensive to work with population...
Sunday 1 July 2018
Multiple measurement, or observation, as row or column vector
A multiple measurement or observation may be expressed as \[x=[\begin{matrix} 4 & 2 & 0.6 \\ \end{matrix}]\] referring to the p...
Sunday 6 May 2018
What is Multivariate Analysis?
When researchers conduct a survey or experiment there are often many variables of interest. Multivariate analysis is a branch of stat...
Sunday 27 August 2017
First four moments of the Poisson distribution
First four moments of Poisson distribution The r th moment about origin is given by \[{{{\mu }'}_{r}}=E({{x}^{r}})=\sum\limits_{x=0}^...
Friday 26 May 2017
What is singular and Non-singular?
If a matrix A MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLx...
Monday 2 January 2017
What is Simple Random Sampling?
A sampling method is a procedure for selecting sample elements from a population. Simple random sampling refers to a sampling method that h...
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