Question

(08.05 MC)The following box plot shows the number of books sold each day at a bookstore for 40 days. How many days did the bookstore sell 2 to 12 books?


A box plot is drawn with end points at 0 and 16. The box extends from 2 to 12 and a vertical line is drawn inside the box at 7


2

4

10

20

Answer 1

Considering the given box-and-whisker plot, it is found that the bookstore sold between 2 to 12 books in 20 days.

What does a box-and-whisker plot shows?

A box and whisker plot shows three things:

• The 25th percentile, which is the median of the bottom 50%.

• The median, which splits the entire data-set into two halfs, the bottom 50% and the upper 50%.

• The 75th percentile, which is the median of the upper 50%.

From the plot given in this problem, the have that:

• The 25th percentile is of 2.

• The median is of 7.

• The 75th percentile is of 12.

This means that the percentage of days in which between 2 to 12 books were sold is:

P = 75 - 25 = 50%.

Hence, out of 40 days, the amount of days is:

0.5 x 40 = 20 days.

More can be learned about box-and-whisker plots at https://brainly.com/question/27721471

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