Standard Deviation Practice

A measure of the amount of variation or dispersion in a set of values.

It is calculated using the formula: σ = √(Σ(xi - μ)² / N), where μ is the population mean and N is the number of data points.

Population standard deviation uses N in the denominator, while sample standard deviation uses (n-1) to account for sample size.

Population Standard Deviation.

Sample Standard Deviation.

Variance is calculated as the average of the squared differences from the mean.

s² = Σ(xi - x̄)² / (n - 1), where x̄ is the sample mean.

The difference between the maximum and minimum values in the data set.

Range = 5.7 - 5.2 = 0.5 kg.

Standard deviation is the square root of variance.