A correctly drawn scatter diagram would have:
1. A suitable title, e.g., 'A scatter diagram to show the relationship between average daily exercise and mental well-being score'.
2. The x-axis labelled 'Average daily exercise (minutes)' with an appropriate scale (e.g., 0 to 50).
3. The y-axis labelled 'Average mental well-being score' with an appropriate scale (e.g., 0 to 16).
4. 10 points accurately plotted on the graph corresponding to the pairs of data from Table 3.
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.
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