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 Outlier?

What is Outlier?

🔎 Introduction In statistics, an outlier is a data point that lies far away from the rest of the observations. Outliers can distort av...

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...

Cumulative Distribution Function

Cumulative Distribution Function

If $(X,Y)$ is a two dimensional random variable (discrete or continuous), then $F(x,y)=p\{X\le x\,andY\le y\}$ is called the cumulative di...