The following scores represent a nurse’s assessment (X) and a physician’s assessment (Y) of the condition of 10 patients at time of admission to a trauma centre: X: 18   13   18   15   10   12    8   4         7 3  Y:  23   20   18   16   14   11 10   7        6 4 a) Obtain the regression equation. b) What is the predicted physician’s assessment for a nurse’s assessment of; 16 scores? 21 scores? c) Distinguish between extrapolation and interpolation

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
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Author:Bruce Crauder, Benny Evans, Alan Noell
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Chapter5: A Survey Of Other Common Functions
Section5.6: Higher-degree Polynomials And Rational Functions
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  1. The following scores represent a nurse’s assessment (X) and a physician’s assessment (Y) of the condition of 10 patients at time of admission to a trauma centre:

X: 18   13   18   15   10   12    8   4         7 3

 Y:  23   20   18   16   14   11 10   7        6 4

  1. a) Obtain the regression equation.
  2. b) What is the predicted physician’s assessment for a nurse’s assessment of;
  3. 16 scores?
  4. 21 scores?

c) Distinguish between extrapolation and interpolation

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