If the variance of the data $2,4,5,6,8,17$ is 23.33 , then the variance of $4,8,10,12,16,34$ will be
If the variance of the data $2,4,5,6,8,17$ is 23.33 , then the variance of $4,8,10,12,16,34$ will be
93.32
25.33
23.33
48.66
Solution
We find that each element of new data is 2 times of each element in old data.
Variance of old data $=23.33$
$\therefore$ variance of new data $=(23.33)(2)^2=93.32$