# Question #98c00

Jul 30, 2016

$82.5 \mathmr{and} 9.9$.

#### Explanation:

If the data are multiplied by a scalar k,

the mean is multiplied by k and the standard deviation is multiplied

by |k|.

For 10% increase in data, k = 110/100=1.1..

So, here, mean becomes 75 X 1.1 = 82.5 and standard deviation

becomes 9 X 1.1 = 9.9