The graph shows the number of story books borrowed by visitors at the local library on a Saturday.
- How many visitors visited the local library that Saturday?
- What was the average number of story books borrowed by each visitor that Saturday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 96 + 123 + 134 + 40 + 107
= 500
(b)
Total number of story books borrowed
= 2 x 96 + 3 x 123 + 4 x 134 + 5 x 40 + 6 x 107
= 192 + 369 + 536 + 200 + 642
= 1939
Average number of story books borrowed
= 1939 ÷ 500
= 3.878
≈ 4
Answer(s): (a) 500; (b) 4