(Answered) Relationship between second test and final exam refer to

Statistics

Relationship between second test and final exam. Refer to the previous exercise. Here are the data for the second test and the final exam for the same students:

970_Relationship between second test and final exam.png

(a) Explain why you should use the second-test score as the explanatory variable.

(b) Make a scatterplot and describe the relationship.

(c) Why do you think the relationship between the second-test score and the final-exam score is stronger than the relationship between the first-test score and the final-exam score?

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