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
= 24 + 52 + 16 + 76 + 24
= 192
(b)
Total number of colouring books borrowed
= 4 x 24 + 5 x 52 + 6 x 16 + 7 x 76 + 8 x 24
= 96 + 260 + 96 + 532 + 192
= 1176
Average number of colouring books borrowed
= 1176 ÷ 192
= 6.125
≈ 6
Answer(s): (a) 192; (b) 6