The graph shows the number of colouring books borrowed by visitors at the local library on a Tuesday.
- How many visitors visited the local library that Tuesday?
- What was the average number of colouring books borrowed by each visitor that Tuesday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 74 + 60 + 88 + 116 + 62
= 400
(b)
Total number of colouring books borrowed
= 2 x 74 + 3 x 60 + 4 x 88 + 5 x 116 + 6 x 62
= 148 + 180 + 352 + 580 + 372
= 1632
Average number of colouring books borrowed
= 1632 ÷ 400
= 4.08
≈ 4
Answer(s): (a) 400; (b) 4