Exam-Style Question on Cumulative Frequency
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 219. This question is similar to one that appeared on a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.
The table shows the test marks for 31 students.
|5 ≤ p < 15||2|
|15 ≤ p < 25||3|
|25 ≤ p < 35||4|
|35 ≤ p < 45||3|
|45 ≤ p < 55||8|
|55 ≤ p < 65||8|
|65 ≤ p < 75||2|
|75 ≤ p < 85||1|
Marco drew this cumulative frequency graph using the data.
Make three criticisms of Marco’s graph.
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