The graph shows the number of books borrowed by visitors at the local library on a Wednesday.
- How many visitors visited the local library that Wednesday?
- What was the average number of books borrowed by each visitor that Wednesday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 126 + 56 + 103 + 31 + 44
= 360
(b)
Total number of books borrowed
= 4 x 126 + 5 x 56 + 6 x 103 + 7 x 31 + 8 x 44
= 504 + 280 + 618 + 217 + 352
= 1971
Average number of books borrowed
= 1971 ÷ 360
= 5.475
≈ 5
Answer(s): (a) 360; (b) 5