Question

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Scatter Plots Quick Check
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Question
Use the table to answer the question.

Times of Runners by Age

Times of Runners by Age
Age Time
24 32.75
29 33.63
34 34.84
39 35.33
44 35.23
49 36.16
A group of students was evaluating the average times of groups of runners for a 5K marathon. Construct the scatterplot based on the data in the table.

Answer 1

Here are the points to plot (age on the x‑axis, time in minutes on the y‑axis):

- (24, 32.75)
- (29, 33.63)
- (34, 34.84)
- (39, 35.33)
- (44, 35.23)
- (49, 36.16)

How to draw the scatterplot
1. Draw horizontal (x) and vertical (y) axes.
2. Label the x‑axis "Age" and set the range about 24 to 50 (tick marks at 25, 30, 35, 40, 45, 50).
3. Label the y‑axis "Time (minutes)" and set the range about 32.5 to 36.5 (tick marks every 0.5 minute: 32.5, 33.0, 33.5, …, 36.5).
4. Plot each of the six points at the coordinates given above.
5. Title the plot something like "Runner Time vs. Age."

Interpretation (optional): the points show a slight upward trend — as age increases the 5K time tends to increase (runners are slower on average).