The graph shows the number of novels borrowed by visitors at the local library on a Wednesday.
- How many visitors visited the local library that Wednesday?
- What was the average number of novels borrowed by each visitor that Wednesday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 68 + 79 + 59 + 87 + 127
= 420
(b)
Total number of novels borrowed
= 3 x 68 + 4 x 79 + 5 x 59 + 6 x 87 + 7 x 127
= 204 + 316 + 295 + 522 + 889
= 2226
Average number of novels borrowed
= 2226 ÷ 420
= 5.3
≈ 5
Answer(s): (a) 420; (b) 5