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AQA GCSE · Question 25.6 · Cognition and Behaviour
Use the graph paper to sketch a scatter diagram to show the results shown in Table 3.
Provide a suitable title and labels for your diagram.
Use the graph paper to sketch a scatter diagram to show the results shown in Table 3.
Provide a suitable title and labels for your diagram.
How to approach this question
1. **Title:** Write a descriptive title at the top, such as 'Scatter diagram showing the correlation between exercise and well-being'.
2. **Axes:** Draw and label the x and y axes. Put the independent variable (or first variable), 'Average daily exercise (minutes)', on the x-axis (horizontal). Put the dependent variable (or second variable), 'Average mental well-being score', on the y-axis (vertical).
3. **Scale:** Choose a suitable scale for each axis that covers the full range of the data (e.g., x-axis from 0 to 50, y-axis from 0 to 16).
4. **Plotting:** For each participant, find their exercise score on the x-axis and their well-being score on the y-axis, and mark a point where these two values intersect. Repeat for all 10 participants.
Full Answer
A scatter diagram is a type of graph used to display the relationship between two co-variables. Each point on the graph represents one participant's data for the two measured variables. In this case, the x-coordinate of each point is the participant's average daily exercise, and the y-coordinate is their average mental well-being score. By plotting all the points, we can visually inspect the pattern to see if there is a correlation (relationship) between the two variables. For example, if the points generally form a pattern going from the bottom left to the top right, it indicates a positive correlation.
Common mistakes
Putting the wrong variable on the wrong axis (though this is often still accepted). Using an inappropriate scale that squashes all the data into one corner. Mis-plotting the points. Forgetting to include a title or labels.
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