Question

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? ()

Answer 1

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

Explanation:

I just took the test

Answer 2

Playing violin causes students to get better grades.

is a reasonable conclusion

Explanation:

Given that the correlation coefficient for practicing violin and getting better grades in a group of people is 0.8.

If practicing violin time is taken as x and getting better grades is taken as y then we are given that x and y are positive strong correlated. Strong because correlation coefficient is >0.5

Hence the given conclusion is reasonable.

Playing violin causes students to get better grades.