Std Dev Vs Variance. The variance is defined as. Standard deviation is another measure to describe the difference between expected results and their actual values.
Standard deviation is the square root of the variance so that the standard deviation would be about 3 03. It is the square root of the variance. A variance or standard deviation of zero indicates that all the values are identical.
Standard deviation and variance.
The result is a variance of 82 5 9 9 17. Deviation just means how far from the normal. Variance is the mean of the squares of the deviations i e difference in values from the mean and the standard deviation is the square root of that variance. Its symbol is σ the greek letter sigma the formula is easy.
