Stats

The distribution of SAT verbal scores of University X's incoming freshman class (N=950) has a mean of 475. What is the value for the sum of deviation scores from the mean of this distribution?

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asked by Jill
  1. The sum of deviation scores from any mean is always zero. Since the mean acts as a fulcrum (a balance point), the deviation of scores above the mean (+) always equal the deviation of scores below the mean (-).

    I hope this helps.

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    posted by PsyDAG

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