数学与统计计算器
这些计算器已有其他语言版本，点击即可查看。
Paste a data set and get the mean, the median, every mode and the range — with the sorted list, the running total and the frequency table that produce each.
Paste a data set and get the sample and population standard deviation, the variance behind each one, the mean and the step-by-step sum of squares.
Paste a data set and get the sample and population variance, the sum of squares each divides, the divisor in play and the standard deviation one square root away.
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