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Author Question: If the coefficient of determination is 0.975, then the slope of the regression line: a. must be ... (Read 185 times)

Pineappleeh

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on: Jul 24, 2018
If the coefficient of determination is 0.975, then the slope of the regression line:
 a. must be positive
  b. must be negative
  c. could be either positive or negative
  d. must be 0
  e. none of these

Question 2

Given the least squares regression line y = -2.48 + 1.63x, and a coefficient of determination of 0.81, the coefficient of correlation is:
 a. -0.85
  b. 0.85
  c. -0.90
  d. 0.90
  e. -0.81


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Heffejeff

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Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

D


Pineappleeh

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  • Posts: 585
Reply 2 on: Jul 24, 2018
Excellent

blakcmamba

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Reply 3 on: Yesterday
Wow, this really help

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