怎么计算多个数值的方差

如何在python中定义一个variance函数来计算多个数值的方差

按你的描述写了个例子，你参考一下：

from statistics import mean
def variance(data):
    data_pow = [pow(d-mean(data),2) for d in data]
    result = sum(data_pow)/len(data)
    return result
data = [1,3,5,6,7,8,9,9,0,1,2,12,3,1]
print(variance(data))

如有帮助，请采纳！

import numpy as np
data = [1,2,3,4,5]
data = np.array(data)
data.std()

如有用请采纳