Question

Examine the following box plot. A box plot with the five-number summary of negative 3, 1, 5, 7, and 11.© 2018 StrongMind. Created using GeoGebra. What is the interquartile range (IQR) of this data set?Enter your answer as a number, like this: 42

Answer 1

What is the interquartile range (IQR) of this data set?

Interquartile range = Q3 - Q1

The interquartile range is the difference between the upper quartile and the lower

where

Q3 = 7, Q1 = 1

`\begin{gathered} Interquartile\text{ range = } \\ =Q_3-Q_1 \\ =7-1 \\ =6 \end{gathered}`

Therefore the correct answer is 6