### Home > CC2MN > Chapter 9 > Lesson 9.1.4 > Problem 9-53

9-53.

Ms. Poppy has finished grading her students’ tests. The scores were

Find the median.

Recall that the median is the middle number of an ordered set of data.

Find the quartiles.

Along with the median, the quartiles divide a set of data into four groups of the same size.

Find the IQR.

Find the mean.

Recall that the mean refers to the average of a set of data.