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Your school is trying to refine its textbook budget. The following table shows the average cost of college textbooks required for the general education courses at your college. Let y be the curriculum year and x be the average cost of a textbook. Find the formula for the least squares line that fits this data. a.  y ̂=−3,349−1.887x b.  y ̂=−3,675−1.87x  c. y ̂=−3,675+1.87x d.  y ̂=−3692+1.77x

Your school is trying to refine its textbook budget. The following table shows the average cost of college textbooks required for the general education courses at your college. Let y be the curriculum year and x be the average cost of a textbook. Find the formula for the least squares line that fits this data. a.  y ̂=−3,349−1.887x b.  y ̂=−3,675−1.87x  c. y ̂=−3,675+1.87x d.  y ̂=−3692+1.77x

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.CR: Chapter Review
Problem 37E: Find the positive geometric mean between 4 and 64.
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 Your school is trying to refine its textbook budget. The following table shows the average cost of college textbooks required for the general education courses at your college. Let y be the curriculum year and x be the average cost of a textbook.

Find the formula for the least squares line that fits this data.

a.  y ̂=−3,349−1.887x

b.  y ̂=−3,675−1.87x

 c. y ̂=−3,675+1.87x

d.  y ̂=−3692+1.77x

 

y 40 1974 28 1975 13 1977 26 1978 30 1978 16 1979 20 1981 29 1987 31 1989 55 1998 105 2005 80 2012
Transcribed Image Text:y 40 1974 28 1975 13 1977 26 1978 30 1978 16 1979 20 1981 29 1987 31 1989 55 1998 105 2005 80 2012
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