Learning objective

Create a histogram to represent a grouped frequency distribution and be able to interpret the information presented in the histogram, including cases with unequal class widths where the vertical axis is labeled 'frequency density'.

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Exam focus

Cambridge IGCSE StatisticsFrequency distributions

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Quick explanation

This point belongs to Frequency distributions, especially Frequency distributions outcomes.
You need to be able to create a histogram to represent a grouped frequency distribution and be able to interpret the information presented in the histogram, including cases with unequal class widths where the vertical axis is labeled 'frequency density'.
The key ideas to know are Plot, Interpret, and Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

PlotInterpretExplain

Why it matters

This objective helps connect Frequency distributions outcomes to exam-style questions, flashcards, and revision notes for Frequency distributions.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 1Statistical Techniques6 marks

Data Table

Number of students in each age group

a
Calculate the frequency density for each age group.
Your answer
Aim for approximately 3 distinct marking points.
[3]
b
Interpret what the histogram bars would show about the distribution of students across age groups.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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