Question
Question: S.D. of data is 6 when each observation is increased by 1, then the S.D. of new data is...
S.D. of data is 6 when each observation is increased by 1, then the S.D. of new data is
A
5
B
7
C
6
D
8
Answer
6
Explanation
Solution
S.D. and variance of data is not changed, when each observation is increased (OR decreased) by the same constant.