Question

A.M. at 2,x,5,10 is 5 find x

Answer 1

we have
arithmetic mean = 5
no. of observation= 4

we know

mean = sum of all observation/ no. of observation
5= 2+x+5+10/4


by transposing

5(4)= 17+x
20= 17+x

x= 20-17
x= 3

Answer 2

Hey mate,

Here's your answer,

A.M.=$\frac{sum\: of \: observations}{no.\: of \: observations}$

Answer: 3

Step-by-step explanation:

A.M.= 5

$\frac{(2+x+5+10)}{4}$=5

2+x+5+10=20

x=3...

Hope it helps you.