If the mean of the following data is 14 then, find the value of a. 13,15,15, a, 15,11

Step-by-step explanation:

Mean is calculated by total sum divided by number

14 = 13+15+15 + a+15 + 11/6,

The missing value is given as a;

14 = 69 + a / 6

We cross multiply:

69 + a = 14 x 6

69 + a = 84

Subtract 69 from both sides to get the value of a

69 + a - 69 = 84 - 69

a = 15