Stats

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A set of 50 data values has a mean of 15 and a variance of 36.

Find the standard score of a data value = 30

  • Stats -

    Use Z equation.

    Variance = SD^2

  • Stats -

    V = 30^2 = 900??

  • Stats -

    Go the opposite direction. If variance = SD^2, then SD = √variance.

  • Stats -

    so the SD = 30??

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