The graph shows the number of colouring books borrowed by visitors at the local library on a Monday.
- How many visitors visited the local library that Monday?
- What was the average number of colouring books borrowed by each visitor that Monday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 26 + 77 + 70 + 52 + 115
= 340
(b)
Total number of colouring books borrowed
= 3 x 26 + 4 x 77 + 5 x 70 + 6 x 52 + 7 x 115
= 78 + 308 + 350 + 312 + 805
= 1853
Average number of colouring books borrowed
= 1853 ÷ 340
= 5.45
≈ 5
Answer(s): (a) 340; (b) 5