Understanding Point and Interval Estimation: A Comprehensive Guide with example

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...

Population and Sample

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...

Multiple measurement, or observation, as row or column vector

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...

What is Multivariate Analysis?

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...

First four moments of the Poisson distribution

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}^...

What is singular and Non-singular?

What is singular and Non-singular?

If a matrix A MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLx...

What is Simple Random Sampling?

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...