Statistics: Total Score and Mean Calculation
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Questions and Answers

What is the formula to calculate the Total Score (TS) or ∑X?

  • TS = √(∑X)
  • TS = N / ∑X
  • TS = √(N * ∑X)
  • TS = ∑X / N (correct)

Which formula is used to calculate the Deviation from the Mean?

  • x = X + M
  • x = X / M
  • x = X * M
  • x = X - M (correct)

What does SS stand for in statistics?

  • Sample Size
  • Sum of Squares (correct)
  • Standard Score
  • Sum of Sources

What does df represent in statistical analysis?

<p>Degrees of Freedom (B)</p> Signup and view all the answers

What is the formula to calculate Sample Variance (s²)?

<p>s² = SS / df (A)</p> Signup and view all the answers

What is the purpose of calculating a Z-score in statistics?

<p>To standardize a raw score and compare it to other scores in a distribution (A)</p> Signup and view all the answers

What does 'SS' represent in statistics?

<p>Size of the variable being observed in a data set (B)</p> Signup and view all the answers

How is the 'Population Mean' denoted in statistics?

<p>μ= ∑X/N (D)</p> Signup and view all the answers

Which formula is used to calculate 'Degrees of Freedom'?

<p>s²= SS/df (B)</p> Signup and view all the answers

What is the purpose of calculating 'Standardized Score' in statistics?

<p>To find the typical/majority/true score in a sample (D)</p> Signup and view all the answers

What is represented by the formula 'z = x/s' in statistics?

<p>Amount of how much the raw score deviates from the mean, squared (A)</p> Signup and view all the answers

How is the 'Sample Mean' calculated in statistics?

<p>M= ∑X/n (A)</p> Signup and view all the answers

'Deviation from the Mean x' can be calculated by which formula?

<p>(X - M) (A)</p> Signup and view all the answers

'Sum of Squares' (SS) in statistics indicates:

<p>'SS = ∑x²', how dispersed the raw scores are (B)</p> Signup and view all the answers

'Sample Variance' (s²) can be defined as:

<p>'s² = SS/df', dispersion of scores from each other (B)</p> Signup and view all the answers

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