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Author Question: In a regression problem the following pairs of (x, y) are given: (2,1), (2,-1), (2,0), (2,-2) and ... (Read 28 times)

piesebel

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on: Jun 24, 2018
In a regression problem the following pairs of (x, y) are given: (2,1), (2,-1), (2,0), (2,-2) and (2,2). That indicates that the:
 a. coefficient of correlation is -1.
  b. coefficient of correlation is 0.
  c. coefficient of correlation is 1.
  d. coefficient of determination is between -1 and 1.

Question 2

Given the least squares regression line y = -2.88 + 1.77x, and a coefficient of determination of 0.81, the coefficient of correlation is:
 a. -0.88.
  b. +0.88.
  c. +0.90.
  d. -0.90.


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mfedorka

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

B

Answer to Question 2

C


piesebel

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Reply 2 on: Jun 24, 2018
:D TYSM

essyface1

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Reply 3 on: Yesterday
Excellent

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