Question

A student has the following test scores in English class. 98 87 86 100 79 92 88 95 89 86 96 What is the IQR (interquartile range) of the student's scores? Enter your answer in the box. IQR =

Answer 1

We have the set of values: 98 87 86 100 79 92 88 95 89 86 96.

We have to calculate the IQR:

`\text{IQR}=Q_3-Q_1`

where Q3 is the third quartile and Q1 is the first quartile.

The first step is to sort the values in ascendent order: