Question

The AM of 6, 7, 11, 8, x, 3, 8, 14 is 8. Find x.​

Answer 1

Answer:

Given ,

6,7,11,8,x,3,8,14 is 18

a.m= sum of observations / number of observations

6+7+11+8+x+3+8+14 / 8 =8

57+x/8=8

57+x=8×8

57+x= 64

x= 64-57

so, x= 7

Answer 2

Answer:

Soln:

Given data=6, 7, 11, 8, x, 3, 8, 14

No. of data=8

Arithmetic mean=8

Arithmetic mean= Sum of data / No of data

8=6+7+11+8+x+3+8+14 / 8

or, 8*8=57+x

or, 64=57+x

or, x=64-57

    x=7