The variance of 6 values is 64. If each value is doubled, find the standard deviation.
A16
B11
C13
D17
A16
B11
C13
D17
Related Questions:
The frequency distribution of diameter (D) of 101 steel balls is given in the following list-
D(mm) | 43 | 44 | 45 | 46 | 47 | 48 |
No. | 13 | 15 | 22 | 21 | 16 | 14 |
find the mean of the diameter in mm