Question

Standard deviation of 10 item is 8. Each item is increased by 3 new standard deviation will be

Answer 1

Answer:

Because we know that if each term of data is either increased or decreased by the same constant number then the standard deviation of the data is remains unchanged. And in question its already given that the standard deviation of 25 numbers is 40.

Hence,

option (A) is correct answer.

Answered By