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A statistical analysis is made of the midterm and final scores in a large course, with...

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Statistics

A statistical analysis is made of the midterm and final scoresin a large course, with the following results:
Average midterm score = 65, SD = 10,
Average final score = 65, SD = 12, r = 0.6
The scatter diagram is football shaped.
a. About what percentage of the class final scores above 70?
b. A student midterm was 75. Predict his final score
c. Suppose the percentile rank of midterm score was 95%, predicthis percentile rank on the final score
d. Of those whose midterm score was 70, about what percentage offinal scores over 80?

Answer & Explanation Solved by verified expert
3.8 Ratings (441 Votes)
Let X shows the midterm score and    See Answer
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