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SDCalc

Weighted Average Calculator: Mean, Spread, and Standard Deviation from Weighted or Repeated Values

Calculate the average and spread of weighted data by entering raw values or frequency-expanded repeated values. Use the results with mean, variance, standard deviation, standard error, count, min, max, and range for quick statistics checks.

12 values
即时计算
样本 (n-1) / 总体 (N)

当您的数据是更大总体的一个子集时使用。应用贝塞尔校正以获得无偏估计。

暂无数据

在标准差计算器中输入数字,即可查看实时统计结果、方差和正态分布图表。