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Author Question: A population has a mean of = 30. If 3 points are added to each score, what is the mean for the new ... (Read 55 times)

stephzh

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on: Jun 20, 2018
A population has a mean of  = 30. If 3 points are added to each score, what is the mean for the new distribution?
 
  A) 3
  B) 27
  C) 30
  D) 33

Question 2

After every score in a sample is multiplied by 3, the mean is calculated and found to be M = 21. What was the mean for the original scores?
 
  A) 7
  B) 3
  C) 21
  D) 63


wshriver

  • Sr. Member
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  • Posts: 318
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

A


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