Consider the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. It is added to each number, the variance of the numbers so obtained is
Consider numbers are 1,2,3,4,5,6,7,8,9,10
If one is added to each number then, numbers will be
Let say xi = 2,3,4,5,6,7,8,9,10,11
So, N= 10
Standard deviation
Hence, the variance is 8.25