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High school statistics

Course: High school statistics > Unit 1

Lesson 5: Box and whisker plots

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Identifying outliers

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The following dotplot shows the number of songs on each album in Sal's collection. Each dot represents a different album.

Here is the five-number summary for these data:

**Five-number summary**
min	$Q_{1}$ ‍	median	$Q_{3}$ ‍	max
$4$ ‍	$9$ ‍	$10$ ‍	$13$ ‍	$20$ ‍

According to the $1.5 \cdot IQR$ ‍ rule for outliers, how many high outliers are there in the data set?

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