The graph shows the number of fiction books borrowed by visitors at the local library on a Thursday.
- How many visitors visited the local library that Thursday?
- What was the average number of fiction books borrowed by each visitor that Thursday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 42 + 122 + 127 + 40 + 37
= 368
(b)
Total number of fiction books borrowed
= 1 x 42 + 2 x 122 + 3 x 127 + 4 x 40 + 5 x 37
= 42 + 244 + 381 + 160 + 185
= 1012
Average number of fiction books borrowed
= 1012 ÷ 368
= 2.75
≈ 3
Answer(s): (a) 368; (b) 3