The estimated population variance is defined as the sum of the .

The estimated population variance is defined as the sum of the .
 
  a. squared differences of each score from the mean of a distribution divided by thesample size
 b. differences of each score from the mean of a distribution divided by the samplesize
 c. squared differences of each score from the mean of a distribution divided by thesample size minus one
 d. differences of each score from the mean of a distribution divided by the samplesize minus one
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  Chapter 5