Calculate the standard deviation, variance, and mean of your dataset. Enter your numbers separated by commas, spaces, or line breaks, and choose between population or sample standard deviation.
Standard deviation is a measure of how spread out numbers are from their average (mean). A low standard deviation indicates that values tend to be close to the mean, while a high standard deviation indicates that values are spread out over a wider range.
Population Standard Deviation: Used when you have data for an entire population. The variance is divided by N (number of values).
Sample Standard Deviation: Used when you have data from a sample of a larger population. The variance is divided by N-1 (Bessel's correction) to provide an unbiased estimate.