If the standard deviation of `0,1,2,3...9` is `K`, then the standard deviation of `10,11,12,13....19` is

If the standard deviation of 1,2,3,4.......10 is sigma , then find the standard deviation of 11, 12,13,14,.....,20.

If the standard deviation of x_1, x_2,……x_n is 3.5, then the standard deviation of -2x_1, -3,-2x_2, -3, ……, -2x_n -3 is

If the standard deviation of x_(1),x_(2),...x_(n) is "3.5," then the standard deviation of -2x_(1)-3,-2x_(2)-3,......,-2x_(n)-3 is

What is the standard deviation of 7, 9, 11, 13, 15?