import numpy as np data = np.array([.5547, .5404, .6364, .6438, .4917, .5674, .5564, .6066]) n = len(data) # sample mean: m = data.mean() # sample standard deviation and variance: s = data.std() v = data.var() # unbiased sample variance: uv = n/(n-1)*v
原文：https://www.cnblogs.com/rose999/p/14759135.html