Is 3 standard deviations above the means considered an outlier?

Discussion in 'Calculator Requests' started by math_celebrity, Apr 8, 2019.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    Is 3 standard deviations above the means considered an outlier?

    Yes.

    Using the empirical rule, we know that:
    • 68% of the values lie within one standard deviation of the mean
    • 95% of the values lie within two standard deviations of the mean
    Anything out side of two standard deviations is considered an outlier.
     

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