Question

A horizontal box plot is labeled, Number of windows, and marked from 0 to 20 in increments of 1. A left whisker extends from 3 to 6. The box extends from 6 to 16 and is divided into 2 parts by a vertical line segment at 11. The right whisker extends from 16 to 19. All values estimated.\[0\]
\[2\]
\[4\]
\[6\]
\[8\]
\[10\]
\[12\]
\[14\]
\[16\]
\[18\]
\[20\]

Answer 1

Five-number summary (estimated): min = 3, Q1 = 6, median = 11, Q3 = 16, max = 19.

IQR = Q3 − Q1 = 16 − 6 = 10.
Range = max − min = 19 − 3 = 16.

Using 1.5·IQR to check outliers:
- Lower fence = 6 − 1.5(10) = −9
- Upper fence = 16 + 1.5(10) = 31

No outliers (all values 3–19 lie inside [−9, 31]).