Question

what is the value of x if the mean of of given data is 18 15 16 17 X + 2 19 20 21

Answer 1

Answer:

Given data is 6,8,9,15,x,29,25,21,22

The ascending order of data excluding x is 6,8,9,15,21,22,25,29

For median to be 18 ,the middle element should be 18(as the data is odd)

So the only possibility is x=18