Author Question: If a standard deviation for a set of scores is9.0, then the variance for those scores is _____ . ... (Read 77 times)

luvbio

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If a standard deviation for a set of scores is9.0, then the variance for those scores is _____ .
 
  a. 81.0
  b. 18.0
  c. 9.0
  d. 3.0

Question 2

The height of a vertical bar is used to represent the frequency of occurrence of scores in a _____.
 
  a. simple frequency distribution
  b. stem-and-leaf plot
   c. histogram
  d. frequency polygon



bitingbit

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Answer to Question 1

A

Answer to Question 2

C



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