In a week, Arjun recorded the number of books he read each day:

Day	Books
Monday	2
Tuesday	3
Wednesday	1
Thursday	4
Friday	2
Saturday	5
Sunday	3

Draw a bar chart and answer the following questions:

(a) What was the total number of books read over the week?

(b) What was the average (mean) number of books per day?

(c) On which day did he read the maximum books?

Taking the days of the week on the horizontal axis and the number of books on the vertical axis (scale: 1 unit = 1 book), the bar chart is drawn with bars of equal width.

(a) Total number of books read over the week

⇒ 2 + 3 + 1 + 4 + 2 + 5 + 3

⇒ 20 books.

(b) Mean = $\dfrac{\text{Total number of books}}{\text{Number of days}} = \dfrac{20}{7} = 2\dfrac{6}{7}$ books per day.

(c) Arjun read the maximum number of books (5) on Saturday.