A Typing Service Keeps Data on the Number of Pages

question 58

Multiple Choice

A typing service keeps data on the number of pages (x) in a manuscript and the length of time (y) (in hours) it takes to complete the typing. The least-squares regression line for the data is given by y = 20 + 0.273x. Use this to predict the amount of hours needed to type a 40-page manuscript.

• A) 810.92
• B) 60.273
• C) 30.92
• D) 16.38

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