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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 74 times)

NguyenJ

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on: Jun 20, 2018
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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Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

B


NguyenJ

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Reply #2 on: Jun 20, 2018
Thank you


batool

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Reply #3 on: Jun 20, 2018
No problem :)


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