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2.2.2 Area in a histogram is proportional to frequency

2.2.2 Area in a histogram is proportional to frequency

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Question 1

A student draws a histogram for two classes, 0≤x<5 0\leq x<5\,0≤x<5 with frequency 20 and 5≤x<15 5\leq x<15\,5≤x<15 with frequency 30. The student uses bar heights 20 and 30.

a.

Explain why these heights give a misleading histogram.

[1]
b.

Calculate the two correct frequency densities.

[2]
Markscheme

2.2.2 Area in a histogram is proportional to frequency Questions

  1. A Level
  2. /Maths
  3. /2.2.2 Area in a histogram is proportional to frequency

8 exam-style questions on OCR (MEI) A Level Maths 2.2.2 Area in a histogram is proportional to frequency. Each one has a worked solution and a mark scheme showing where the marks go.

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