Alice wants to prove to her parents that listening to music while she does her homework will help her get better grades. She decides to ask 25 of her friends if they listen to music while they do their homework and what their grades are. She finds that her friends who have high grades also listen to music while they do their homework. She tells her parents that she has proven that listening to music while doing homework will cause her grades to improve. What mistake has Alice made

Answer: The answer is definitely the third one, She did not use a random sample and tried to show a cause and effect relationship with an observational study.

Step-by-step explanation:

I took the test and got it right.

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MrRoyal MrRoyal · Answer 2 · 2022-04-14T15:55:25+02:00

Alice's mistake is (c) She did not use a random sample, and she tried to show cause and effect with an observational study.

How to determine the Alice's mistake?

From the question, we have the following highlights:

She observes her friends with high grades listens to music while doing their assignment
She uses this observation to derive a conclusion

The above highlights mean that:

Alice did not carry out a random sampling, but instead she concluded using her observations

Hence, Alice's mistake is (c)