Question

each hour, for several hours, the owner of a bakery recorded the number of customers who entered the store. the box - and - whisker plot (sometimes called a boxplot) summarizes the data. use the box - and - whisker plot to answer the following. (a) what is the median number of customers? (b) what is the smallest number of customers? (c) what is the first quartile (q1) of the numbers of customers?

Explanation:

Step1: Identify median from box - and - whisker plot

The line inside the box represents the median. From the plot, the median is at 30.

Step2: Identify the smallest number

The end - point of the left - hand whisker represents the smallest value in the data set. It is 15.

Step3: Identify the first quartile

The left - hand side of the box represents the first quartile ($Q_1$). From the plot, $Q_1$ is 25.

Answer:

(a) 30
(b) 15
(c) 25