stats

Standard Deviation

Population or sample standard deviation, variance, and standard error of the mean.

Input

Data Set (comma or space separated)

Type

Divides by n−1 (Bessel) — use when data is a sample

Results

Count n—

Mean μ—

Variance s²—

Std Dev s—

Std Error SEM = s/√n—

s² = Σ(x−μ)²/(n−1) · SEM = s/√n