The graph shows the number of magazines borrowed by visitors at the local library on a Friday.
- How many visitors visited the local library that Friday?
- What was the average number of magazines borrowed by each visitor that Friday? Give your answer to the nearest whole number.
(a)
Total number of visitors
= 86 + 133 + 71 + 16 + 118
= 424
(b)
Total number of magazines borrowed
= 1 x 86 + 2 x 133 + 3 x 71 + 4 x 16 + 5 x 118
= 86 + 266 + 213 + 64 + 590
= 1219
Average number of magazines borrowed
= 1219 ÷ 424
= 2.875
≈ 3
Answer(s): (a) 424; (b) 3