Ms. Gonzalez had $70 to purchase school supplies for her class. She bought 29 glue sticks and 29 boxes of crayons. Each glue stick cost $1.29, and each box of crayons cost $0.79. How much money did Ms. Gonzalez have left after these purchases?

Rearrange it from lowest to biggest.

8, 11, 12, 13, 16, 42

Mean (average):

(8 + 11 + 12 + 13 + 16 + 42) ÷ 6

(102) ÷ 6 = 17

Median:

Refer to the rearranged data and find the middle one.

There are two values that are in the middle, 12 and 13.

So,

(12 + 13) ÷ 2

25 ÷ 2

= 12.5

So the true statements are:

The mean of this data set is 17

The median is 12.5

The mean is more affected by the outlier