KS3 Maths - Scatter Graphs
Ace Maths・2 minutes read
Scatter graphs depict the relationship between variables, including positive, negative, or no correlation, with strong correlations seen when points align closely to the line of best fit as shown in the example of air temperature and hot drinks sold.
Insights
- Positive correlation means that when one variable increases, the other also increases, as demonstrated by temperature and ice cream sales in the text.
- Strong correlation is evident when data points closely align with the line of best fit on a scatter graph, highlighting a clear trend, as seen in the relationship between air temperature and hot drinks sold.
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Recent questions
What do scatter graphs display?
Relationships between two variables.
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Summary
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Understanding Scatter Graph Correlations
- Scatter graphs show the relationship between two variables and can have positive, negative, or no correlation.
- Positive correlation means as one variable increases, so does the other, like temperature and ice cream sales.
- Negative correlation indicates that as one variable increases, the other decreases, such as hours gaming and math scores.
- No correlation implies there is no relationship between the two variables.
- Strong correlation can be seen when points are close to the line of best fit, indicating a clear trend.
- Using a scatter graph example of air temperature and hot drinks sold, a negative correlation is observed, with the line of best fit showing the trend accurately.
