Question

If the arithmetic mean of numbers 3, 4, 8, 5, X, 3, 2, 1
is 4 then find the value of x,​

Answer 1

Answer: x=6

Step-by-step explanation:

No.of observations =8

Sum of observations=26+x

Mean = 4

Sum of observations/no.of observations = 4

(26+x)/8 = 4

26+x = 32

x=32-26

x= 6