Solution:
We know that X and Y are two variables such that Y = X + b, where b is a constant.
Then,
Thus, the standard deviation of the new data is also 6
The standard deviation of a data is 6, when each observation is increased by 1, then the S.D. of the new data is
We know that X and Y are two variables such that Y = X + b, where b is a constant.
Then,
Thus, the standard deviation of the new data is also 6