This key facts covers Key Facts About Pictograms within Bar Charts & Pictograms for GCSE Mathematics. Revise Bar Charts & Pictograms in Statistics for GCSE Mathematics with 11 exam-style questions and 20 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 5 of 11 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Key Facts About Pictograms
- Purpose: Visual representation using symbols or pictures
- Key: Must include a key showing what each symbol represents
- Symbols: Use simple, clear symbols that relate to the data
- Consistency: All symbols must be the same size
- Partial symbols: Can use fractions of symbols (half, quarter, etc.)
- Alignment: Symbols should be neatly aligned
- Scale: Each symbol represents a specific number of units
Practice questions for Bar Charts & Pictograms
In a pictogram, the key shows that one symbol represents 4 people. A row shows 3 and a half symbols. How many people does this row represent?
A bar chart comparing two companies' sales has a vertical axis starting at 900 rather than 0. Company A has sales of 950 and Company B has sales of 1000. Explain why this bar chart could be misleading.