Solution :
Correct mean = old mean + 2 = 30 + 2 = 32
As standard deviation is independent of change of origin.
Hence, it remains same.
Similar Questions
The variance of first 50 even natural numbers is
Correct mean = old mean + 2 = 30 + 2 = 32
As standard deviation is independent of change of origin.
Hence, it remains same.
The variance of first 50 even natural numbers is