The graph shows the number of colouring 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 colouring books borrowed by each visitor that Sunday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 44 + 113 + 92 + 54 + 72
= 375
(b)
Total number of colouring books borrowed
= 3 x 44 + 4 x 113 + 5 x 92 + 6 x 54 + 7 x 72
= 132 + 452 + 460 + 324 + 504
= 1872
Average number of colouring books borrowed
= 1872 ÷ 375
= 4.992
≈ 5
Answer(s): (a) 375; (b) 5