Author Question: A sample made up of volunteers may be biased because a. the control group and the experimental ... (Read 75 times)

bucstennis@aim.com

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A sample made up of volunteers may be biased because
 
  a. the control group and the experimental group can never be equated
  b. it is not economical
  c. they may not be representative of the total population
  d. none of the above

Question 2

The median is always:
 
  a. an actual score
  b. at the 50th percentile
  c. larger than the mean
  d. the same as the arithmetic average



kthug

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Answer to Question 1

C

Answer to Question 2

B



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