Phoebe compared the cost of books in 9 different stores. $2, $8, $4, $7, $8, $5, $8, $4, $6 What is the median cost of the books?

A. 4

B. 6

C. 7

D. 8

First you need to arrange the numbers from smallest to largest.

2, 3, 4, 5, 6, 7, 8, 8, 8

Then we can find the middle number.

We can eliminate numbers like this:

2, 3, 4, 5, 6, 7, 8, 8, 8

3, 4, 5, 6, 7, 8, 8

4, 5, 6, 7, 8

5, 6, 7

6

And now we have 6 as our median