Properties of Variance and Standard Deviation
All of the following statements about variance and standard deviation are true EXCEPT:
A
The standard deviation is obtained by taking the square root of the variance.
B
The variance is defined as the square of the range of the data.
C
Both the variance and the standard deviation provide measures of how spread out the data values are from the mean.
D
The variance is computed as the average of the squared deviations from the mean.
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