Question

Find the value of p if the mean of the following distribution is 20.

X:- 15 17 19 20+p 23
F:- 2 3 4 5p 6​

Answer 1

X:-15 17 19 20+p 23 there is a difference of 2 between each number so p=1 .

F:-2 3 4 5p 6 there is a difference of one so p needs to be 1 .