The data

The data set represents the number of cars in a town given a speeding ticket each day for 10 days.

2 4 5 5 7 7 8 8 8 12


What is the IQR?

Correct answer:

IQR =  3

Step-by-step explanation:

$$\begin{gathered} n=10 \\ Quartiles: \\ {Q}_1=5 \\ {Q}_2=7 \\ {Q}_3=8 \\ IQR=Q_3-Q_1=8-5=3 \end{gathered}$$

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