The Population Standard Deviation Calculator is used to calculate the population standard deviation of a set of numbers.
The population standard deviation measures the variability of data in a population. It is usually an unknown constant. σ (Greek letter sigma) is the symbol for the population standard deviation.
The following is the population standard deviation formula:
σ = population standard deviation
x1, ..., xN = the population data set
μ = mean of the population data set
N = size of the population data set
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