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Author Question: S2 = X2 - (X)2 / N N The above formula is called the A) sum of the squared deviation scores B) ... (Read 76 times)

NguyenJ

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S2 = X2 - (X)2 / N
  N
  The above formula is called the
 
  A) sum of the squared deviation scores
  B) formula to calculate the mean
  C) deviation score formula for variance
  D) raw score formula to calculate the variance

Question 2

For a set of scores on an exam, the standard deviation is calculated by
 
  A) adding up all scores and dividing this sum by the number of scores
  B) taking the square root of the variance of the scores
  C) multiplying the mean of the scores with the variance of the scores
  D) dividing the variance of the scores by 2



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batool

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Answer to Question 1

D

Answer to Question 2

B





 

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