The standard deviation of a data set is 4. What is the variance?
The variance is equal to the square of the standard deviation. Since the standard deviation is 4, the variance is equal to 4^2 = 16.
To find the variance, you can square the standard deviation.
The formula for variance is:
Variance = (Standard Deviation)²
Substituting the given standard deviation of 4 into the formula:
Variance = (4)²
Variance = 16
Therefore, the variance of the data set is 16.
To find the variance, you need to square the standard deviation. The formula to calculate variance is:
Variance = (Standard Deviation)^2
Since the standard deviation is given as 4, you can substitute that value into the formula:
Variance = (4)^2 = 16
Therefore, the variance of the data set is 16.