Question

The mean of 25 observations is 32. If each observation is increased by 5, the new mean will be:

Options

• 27

• 37

• 32

• 30

Answer 1

37

Explanation:

If each of the 25 observations is increased by 5.

The total increases by 25 × 5. 

So, the mean increases by 5. 

New mean = 32 + 5

= 37