Question

If mean of the following observvations is 16 then what is the value of x 15,18,14,12,x-2,x+4,12,x+2,25,24
a. 10
b. 12
c. 9
d. 16

Answer 1

b.12 is the answer
16=124+3x/10
160=124+3x
3x=160-124
3x=36
x=12