Question

at music camp, addison tracked the number of minutes she practiced her trombone each day. what was the lower quartile of addisons practice time? minutes

Explanation:

Step1: Recall box - plot quartile position

In a box - plot, the left - hand edge of the box represents the lower quartile ($Q_1$).

Step2: Identify the value

From the given box - plot, the left - hand edge of the box is at 70 minutes. So the lower quartile of Addison's practice time is 70 minutes.

Answer:

70