Question

For what value of x, the mean of the following data is 8.
4,5,6,8,5,4,8,5,6,7,8​

Answer 1

Step-by-step explanation:

mean = sum of observation/no. of observation

mean= x+4+5+6+8+5+4+8+5+6+7+8/12=8

mean= x+66/12=8

mean= x+66= 8×12

mean= x+66=96

mean= x=96-66

mean= x=30

Ans= x=30