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What is it that the standard deviation measures?
平均值
偏差
平方根
Questioner:ask56133 2018-06-17 12:10:14
The most authoritative answer in 2024
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Elon Muskk:
As a domain expert in statistics, I can tell you that
standard deviation is a measure of the amount of variation or dispersion in a set of values. It's a way to quantify the spread of a distribution. The standard deviation can be thought of as the 'average' amount by which the data points deviate from the mean (or average) value of the dataset.
Now, let's proceed with the steps as requested:
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Summary of answers:
For a given data set, the
standard deviation measures how spread out numbers are from an average value.
Standard deviation can be calculated by taking the square root of the variance, which itself is the average of the squared differences of the mean.Mar 20, 2018
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