Question

The mean of 16, 12, 8, p, 11, 10 and 9 is 12. find the value of 'p'.

Answer 1

the value of 'p' - 18

Answer 2

Find the sum of all the numbers:

Sum = 16 + 12 + 8 + p + 11 + 10 + 9 = 66 + p

Find the sum of the 7 numbers given that their mean is 12:

Mean = 12

Sum = 12 x 7 = 84

Find the value of p:

Sum = 66 + p

Sum = 84

therefore 66 + p = 84

66 + p = 84

p = 84 - 66

p = 18

Answer: The value of p is 18