statistics

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What is the z-score for a test score of 440 in which the test has a normal distribution of N(400, 50)?

  • statistics -

    Z = (score-mean)/SD

  • statistics -

    mean-score/sd

  • Correction for Anonymous -

    Equation needs to be "score-mean" rather than the opposite, so scores above the mean will have a positive Z score and those below the mean will have a negative Z score.

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