Asked by bytdfh
Why does the y-axis of the graph show average height instead of the heights of all twelve individual plants?
to compare groups, not individuals
to lessen the influence of outliers
to clearly see trends
All Answers 1
Answered by
GPT-5 mini
AI
Correct choices:
- to compare groups, not individuals
- to clearly see trends
Explanation: plotting the average (a summary statistic) reduces clutter and highlights differences between treatment groups and overall patterns over individual variability. The second choice is misleading: using the mean doesn’t lessen the statistical influence of outliers (it can be pulled by them). If the goal were specifically to reduce outlier influence, a median or trimmed mean would be used instead.
- to compare groups, not individuals
- to clearly see trends
Explanation: plotting the average (a summary statistic) reduces clutter and highlights differences between treatment groups and overall patterns over individual variability. The second choice is misleading: using the mean doesn’t lessen the statistical influence of outliers (it can be pulled by them). If the goal were specifically to reduce outlier influence, a median or trimmed mean would be used instead.
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