Question

16. The mean of 12 numbers is 7. If 2 is added to each number what will be the new mean.​

Answer 1

Answer:

9

Step-by-step explanation:

The mean of 12 numbers is 12

$\\ \frac{sum}{12} = 7$

Now add 2 to each number, so the sum will increase by 24

$\\ \frac{sum + 24}{12} = \: new \: mean\\ \\ \\ \\ 7 + 2 = 9 = new \: mean$

Answer 2

hey mate here is ur answer

there are 12 no and their mean is 7 .

let there sum be S . so mean = S/12=7

If 2 is added to each number the sum increased by 12 × 2 = 24

to find the mean we divide by 12 so mean equals

(S+24)/12 = 7 +2 = 9

hence the new mean is 9

Plz mark as Brainliest dear friend