Maths-

General

Easy

Question

# The mean of a set of observation is . If each observation is divided by a, a¹ 0 and then is increased by 10, then the mean of the new set is

Hint:

## The correct answer is:

### To find the mean of the new data.

Let x1,x2……,xn be n observations.

Then, =

let = +10

New mean =

New mean = +10 =

Therefore, new mean =

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