Since I can't see the scatter plots you are referring to, I can help you understand how to choose the correct one based on the relationship described in the study.
To represent the idea that older people tend to sleep less than younger people, look for a scatter plot that shows a negative correlation. This means as the age (often plotted on the x-axis) increases, the amount of sleep (often plotted on the y-axis) decreases.
A few things to look for in the scatter plot:
- X-axis vs Y-axis: Ensure that age is on the x-axis and sleep duration on the y-axis.
- Trend: Look for a downward trend as you move from left to right on the graph. If the points generally go downwards, that indicates that as age increases, the amount of sleep decreases.
- Distribution of Points: The points should be scattered in such a way that most of them lie above the line while points decrease as you move right, confirming the negative correlation.
If you have specific plots in mind, describe them or compare their trends to these criteria.
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