Statistics Calculator

The standard deviation is sqrt(sum((x−mean)²)/n), without the n−1 sample correction. Only one mode is shown: ties use the value encountered first in the input, including when all values are unique. Results use at most 12 significant digits; nonzero magnitudes below 1e-9 or at least 1e15 use scientific notation. Values that are not finite, nonzero input that underflows to zero, or computations outside the supported numerical range are rejected. For nonconstant data, variance below 2.2250738585072014e-308 is outside that range. Rescale the data when necessary; display rounding does not provide arbitrary precision.