The variance of 10 observations is 4. If each observation is multiplied by 3, find the variance of the new data?
Dear student
If we multiply the values by a constant, the standard deviation is multiplied by this constant, the variance is multiplied by the square of this constant
so new variance
Regards
If we multiply the values by a constant, the standard deviation is multiplied by this constant, the variance is multiplied by the square of this constant
so new variance
Regards