This deep dive covers Understanding Correlation within Scatter Graphs for GCSE Mathematics. Revise Scatter Graphs in Statistics for GCSE Mathematics with 14 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 3 of 8 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 3 of 8
Practice
14 questions
Recall
20 flashcards
Understanding Correlation
Types of Correlation
1. Strong Positive Correlation
- Points lie close to an upward sloping line
- As x increases, y increases
- Example: Height vs. shoe size
2. Weak Positive Correlation
- General upward trend but points are scattered
- Relationship exists but with lots of variation
- Example: Study time vs. test scores (many other factors)
3. Strong Negative Correlation
- Points lie close to a downward sloping line
- As x increases, y decreases
- Example: Car age vs. value
4. Weak Negative Correlation
- General downward trend but points are scattered
- Example: TV watching time vs. fitness level
5. No Correlation
- Points show no clear pattern
- No relationship between the variables
- Example: Shoe size vs. IQ
Keep building this topic
Read this section alongside the surrounding pages in Scatter Graphs. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Scatter Graphs
A scatter graph shows that as temperature increases, ice cream sales also increase. This is an example of:
A scatter graph shows a strong positive correlation between the number of ice creams sold and the number of drowning incidents at a beach. A student says: 'Ice cream causes drowning.' Explain why this conclusion is incorrect.
Quick Recall Flashcards
14 questions on Scatter Graphs — practise free
Instant marking, adaptive difficulty, and 20 spaced repetition flashcards. Free until your GCSEs.
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