The measure of dispersion that is the square root of the variance is known as the _______.
- Mean
- Median
- Range
- Standard Deviation
The standard deviation is the square root of the variance. It measures the average distance between each data point and the mean. Like the variance, it expresses the dispersion of data around the mean, but unlike the variance, its units are the same as the original data, making it easier to interpret.
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