Chapter 11.2, Problem 7E

To determine

To make: a box-and-whisker plot of data $15,20,19,18,17,26,22,25,20,23,18$

Answer to Problem 7E

The median of data is $20$

Explanation of Solution

Given information: Consider, the data provided in the question

  $15,20,19,18,17,26,22,25,20,23,18$

Calculation: To make a box-and-whisker plot of data $15,20,19,18,17,26,22,25,20,23,18$

Arrange data in sequence

  $\left\{15,17,18,18,19,20,20,22,23,25,26\right\}$

Median $=20$

Upper quartile $=23$

Lower quartile $=18$