Question

if the mean of 6,4,7,pand10 is 8 find the value of p

Answer 1

it will be 13

mean = sum of obs./no. of obs.
8=(6+4+7+10+p)/5
8×5=27+p
40-27=p
13=p

Answer 2

Mean of 6, 4, 7, p and 10 is 8

As per the formula

$\frac{6+4+7+p+10}{5} = 8$

6+4+7+p+10 = 40

27 + p = 40

p = 40 - 27

p = 13