The graph shows the number of story 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 story books borrowed by each visitor that Monday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 110 + 11 + 84 + 73 + 130
= 408
(b)
Total number of story books borrowed
= 1 x 110 + 2 x 11 + 3 x 84 + 4 x 73 + 5 x 130
= 110 + 22 + 252 + 292 + 650
= 1326
Average number of story books borrowed
= 1326 ÷ 408
= 3.25
≈ 3
Answer(s): (a) 408; (b) 3