Question

Question 10Answer to question 9: lower is 63 and upper 75

Answer 1

12

Explanation

The interquartile range (IQR) is calculated as follows:

`IQR=Q_3-Q_1`

where Q3 represents the upper quartile and Q1 the lower quartile. Substiutitng Q3 = 75 and Q1 = 63, we get:

`\begin{gathered} IQR=75-63 \\ IQR=12 \end{gathered}`