identify the lower quartile. a b 30 35 40 45 50 55 60 65 70 75 80 a b
identify the lower quartile. a b 30 35 40 45 50 55 60 65 70 75 80 a b
Answer
Explanation:
Step1: Recall box - plot concept
In a box - plot, the lower quartile ($Q_1$) is the value at the left - hand side of the box.
Step2: Identify from the plot
The value at the left - hand side of the box is marked by point A.
Answer:
A