Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be________?
A50
B50-20 = 30
C50/20
D70
Correct answer
A. 50
Explanation
The correct answer is 50.
Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be________? - Answer and Explanation | Academy of Pakistan