Question

PLS help me fast!!!!

The following box plot shows the number of books sold each day at a store for 80 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

40
60
70
80

Answer 1

I had to do this and i got option 1, too (40)

Explanation:

I did it and got it right on my exam.

Answer 2

The correct option is 1.

Explanation:

It is given that the box plot shows the number of books sold each day at a store for 80 days.

A box plot is drawn with end points at 0 and 16. It means minimum value is 0 and maximum is 16.

The box extends from 2 to 12. It means first quartile is 2 and the third quartile is 12. A vertical line is drawn inside the box at 7, it means median is 7.

He have to find the number of days in which the bookstore sell 2 to 12 books.

2 is first quartile and 12 is third quartile, we know that

`Q_1=25\%`

`Q_3=75\%`

`Q_3-Q_1=75\%-25\%=50\%`

The data lies between Q₁ and Q₃ is 50% of the data.

`80* (50)/(100)=40`

The bookstore sell 2 to 12 books in 40 days.

Therefore, the correct option is 1.