Concept explainers
Midterm–final
a. Find the predicted final exam score for a student who has (i) midterm score = 100, (ii) midterm score = 50. Note that in each case the predicted final exam score regresses toward the mean of 75. (This is a property of the regression equation that is the origin of its name, as Chapter 12 will explain.)
b. Show that the correlation equals 0.60 and interpret it. (Hint: Use the relation between the slope and correlation.)
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Statistics: The Art and Science of Learning from Data (4th Edition)
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