The graph shows the number of fiction 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 fiction books borrowed by each visitor that Saturday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 40 + 42 + 81 + 86 + 51
= 300
(b)
Total number of fiction books borrowed
= 4 x 40 + 5 x 42 + 6 x 81 + 7 x 86 + 8 x 51
= 160 + 210 + 486 + 602 + 408
= 1866
Average number of fiction books borrowed
= 1866 ÷ 300
= 6.22
≈ 6
Answer(s): (a) 300; (b) 6