In a certain class, midterm scores average out to 60 with an SD of 15, as do
Question:
In a certain class, midterm scores average out to 60 with an SD of 15, as do scores on the final. The correlation between midterm scores and final scores is about 0.50.
The scatter diagram is football-shaped. Predict the final score for a student whose midterm score is
(a) 75
(b) 30
(c) 60
(d) unknown Compare your answers to exercise 1 on p. 161. PL968
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