This deep dive covers Example Calculation within Histograms for GCSE Mathematics. Revise Histograms in Statistics for GCSE Mathematics with 14 exam-style questions and 12 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 6 of 10 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 6 of 10
Practice
14 questions
Recall
12 flashcards
Example Calculation
| Age Range | Class Width | Frequency | Frequency Density |
|---|---|---|---|
| 0 ≤ a < 10 | 10 | 20 | 20 ÷ 10 = 2 |
| 10 ≤ a < 20 | 10 | 40 | 40 ÷ 10 = 4 |
| 20 ≤ a < 30 | 10 | 60 | 60 ÷ 10 = 6 |
| 30 ≤ a < 50 | 20 | 80 | 80 ÷ 20 = 4 |
Notice how the 30-50 group has highest frequency (80) but lower density (4) due to its wider class interval.
Keep building this topic
Read this section alongside the surrounding pages in Histograms. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Histograms
A histogram shows the heights (cm) of plants in a garden with the following frequency densities: - 0 =< h < 5: frequency density = 4 - 5 =< h < 15: frequency density = 3 - 15 =< h < 25: frequency density = 6 - 25 =< h < 40: frequency density = 2 What is the modal class?
A histogram is drawn with unequal class widths. A student says: 'I can just use frequency on the y-axis instead of frequency density — the shape of the histogram will look the same.' Is the student correct? Explain your answer.
Quick Recall Flashcards
14 questions on Histograms — practise free
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