The graph shows the number of fiction 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 fiction books borrowed by each visitor that Wednesday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 84 + 79 + 63 + 42 + 17
= 285
(b)
Total number of fiction books borrowed
= 5 x 84 + 6 x 79 + 7 x 63 + 8 x 42 + 9 x 17
= 420 + 474 + 441 + 336 + 153
= 1824
Average number of fiction books borrowed
= 1824 ÷ 285
= 6.4
≈ 6
Answer(s): (a) 285; (b) 6