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
= 38 + 71 + 77 + 127 + 67
= 380
(b)
Total number of fiction books borrowed
= 3 x 38 + 4 x 71 + 5 x 77 + 6 x 127 + 7 x 67
= 114 + 284 + 385 + 762 + 469
= 2014
Average number of fiction books borrowed
= 2014 ÷ 380
= 5.3
≈ 5
Answer(s): (a) 380; (b) 5