A linear relationship requires that . a. a change of one unit ...

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A linear relationship requires that .
 
  a. a change of one unit in variable X be accompanied by a constant amount ofchange in variable Y
 b. when X equals zero, then Y must equal zero
  c. the population distributions of X and Y are normal
  d. a change of one unit in variable X be accompanied by a varying amount ofchange in variable Y

Question 2

In a normal distribution, .9544 of the scores will be located in the interval between .
 
  a. the mean and plus 2
  b. plus 1 and plus 2
  c. plus 2 and plus 3
  d. the mean minus 2 and the mean plus 2

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Answer to Question 1

A

Answer to Question 2

D

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