13
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Lab: Interdependence of Organisms

Question 13 • CA-Life Science B (High School)

How could increasing the number of plants help you decrease error in the experiment? Check all possible reasons.

Answer
A
It would increase the sampling error.
B
It would reduce the significance of any single measurement error.
C
It would make calculations easier.
D
Having more data would make the average height less affected by one or two plants that are randomly shorter or taller.
E
It would make a plant’s death less of an issue.

Explanation

With more plants, one inaccurate height measurement has less influence on the overall results, so B is correct. A larger group also makes the average height less sensitive to a few unusually short or tall plants, which supports D. If one plant dies, it represents a smaller share of the group, so its loss is less likely to disrupt the experiment, making E correct. More plants do not increase sampling error or automatically make calculations easier.

AI-written and checked against the verified answer.

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