Question

What is the mean of the following numbers?


x-3a,x-2a,x-a,x,x+a

Answer 1

x - a

Explanation:

The mean is calculated as

mean=
`(sum)/(count)`

=
`(x-3a+x-2a+x-a+x+x+a)/(5)`

=
`(5x-5a)/(5)`

=
`(5(x-a))/(5)`

= x - a