(a)[1]
Find the median value.
(b)[2]
Find the 30th percentile value.
(c)[2]
Find how many students took more than 5 minutes.
Mathematics 0580 · IGCSE · Cumulative frequency diagrams
Cumulative frequency diagrams — practice question
The cumulative frequency graph presents the times, measured in minutes, that 80 students needed to finish a short test. The horizontal axis is labelled Time (minutes) from 0 to 10, while the vertical axis is Cumulative frequency up to 80.