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In a certain class, midterm score average out 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.
a. Predict the final score for a student whose midterm score is
(i) 75 (ii) 30 (ii) 60 (iv) unknown
b. Predict the midterm score for a student shoes final score is 45.
c. Apparently low-scoring students on the midterm do better on the final, but low scoring student on the final did better on the midterm. How is this possible?
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In a shipment of 52 vials, only 12 do not have hairline cracks. If you randomly select 2 vials from the shipment, what is the probability that none of the 2 vials have hairline cracks?
elementary 201 766 148 218 519 396 274secondary 50 280 27 41 108
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a survey reported that 70 of those responding to a national survey of college freshmen were interested in taking summer
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