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28 October, 20:07

The correlation coefficient for practicing violin and getting better grades in a group of people is 0.8. Analyze the following statement.

Playing violin causes students to get better grades.

Is this a reasonable conclusion?

Yes; students who play violin must necessarily get better grades

Yes; the correlation coefficient is above 0.5, so that implies causation

No; playing violin and earning better grades are completely unrelated

No; even though there is a strong positive correlation, playing violin doesn't cause students to get better grades

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  1. 28 October, 20:54
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    I think the correct answer from the choices listed above is the second option. The conclusion saying playing violin causes students to get better grades is a reasonable conclusion. This is because the correlation coefficient is above 0.5, so that implies causation. Hope this answers the question.
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