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March 25, 2017

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A student scored 84 points on a test where the mean score was 79 and the standard deviation was 4. Find the student's z score, rounded to 2 decimal places

  • statistics - ,

    Use z-score formula.

    z = (x - mean)/sd

    x = 84
    mean = 79
    sd = 4

    Plug the values into the formula and calculate for your z-score.

  • statistics - ,

    1.25

  • statistics - ,

    1.25

  • statistics - ,

    64.25

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