The graph shows the number of story books borrowed by visitors at the local library on a Sunday.
- How many visitors visited the local library that Sunday?
- What was the average number of story books borrowed by each visitor that Sunday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 52 + 17 + 21 + 124 + 126
= 340
(b)
Total number of story books borrowed
= 5 x 52 + 6 x 17 + 7 x 21 + 8 x 124 + 9 x 126
= 260 + 102 + 147 + 992 + 1134
= 2635
Average number of story books borrowed
= 2635 ÷ 340
= 7.75
≈ 8
Answer(s): (a) 340; (b) 8