The graph shows the number of fiction books borrowed by visitors at the local library on a Friday.
- How many visitors visited the local library that Friday?
- What was the average number of fiction books borrowed by each visitor that Friday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 134 + 44 + 94 + 86 + 42
= 400
(b)
Total number of fiction books borrowed
= 4 x 134 + 5 x 44 + 6 x 94 + 7 x 86 + 8 x 42
= 536 + 220 + 564 + 602 + 336
= 2258
Average number of fiction books borrowed
= 2258 ÷ 400
= 5.645
≈ 6
Answer(s): (a) 400; (b) 6