Variance is always non-negative since each term in the variance sum is squared and therefore the result is either positive or zero.

TLS Online TPP Program

#Id: 4911

#Unit 13. Methods in Biology

Variance always has squared units. For example, the variance of a set of weights estimated in kilograms will be given in kg squared.

TLS Online TPP Program

#Id: 4912

#Unit 13. Methods in Biology

Standard Deviation - The spread of statistical data is measured by the standard deviation.

TLS Online TPP Program

#Id: 4913

#Unit 13. Methods in Biology

Standard Deviation describes the square root of the mean of the squares of all values in a data set and is also called the root-mean-square deviation.

TLS Online TPP Program

#Id: 4915

#Unit 13. Methods in Biology

describes the square root of the mean of the squares of all values in a data set and is also called the root-mean-square deviation.

TLS Online TPP Program

#Id: 4917

#Unit 13. Methods in Biology

Variance and Standard Deviation Formula.