Std Dev. The formula for the standard deviation is square root of the variance. The standard deviation is a measure of how spread out numbers are.
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A low standard deviation indicates that the values tend to be close to the mean also called the expected value of the set while a high standard deviation indicates that the values are spread out over a wider range. The formula for the standard deviation is square root of the variance. Here is a free online arithmetic standard deviation calculator to help you solve your statistical questions.
The standard deviation is calculated as.
Here is a free online arithmetic standard deviation calculator to help you solve your statistical questions. The standard deviation is a measure of how spread out numbers are. The lower the standard deviation the closer the data points tend to be to the mean or expected value μ. Standard deviation can be difficult to interpret as a single number on its own.
