Question

the box-and-whisker plot below represents some data set. what is the value of the second quartile?

Explanation:

Step1: Recall box - whisker plot parts

In a box - and - whisker plot, the second quartile ($Q_2$) is the median of the data set. The median is represented by the line inside the box of the box - and - whisker plot.

Step2: Identify the median line

Looking at the given box - and - whisker plot, the line inside the box (which represents the median or the second quartile) is at the value of 150 on the number line.

Answer:

150