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12 March, 19:59

The mean of a set of data is 148.87 and its standard deviation is 68.29. Find the z score for a value of 490.19.

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  1. 12 March, 22:04
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    The mean of a set of data is 148.87 and its standard deviation is 68.29. Find the z score for a value of 490.19

    the z-score is given by:

    z = (x - μ) / σ

    plugging in the values in the expression we get:

    z = (490.19-149.87) / 68.29

    z=340.32/68.29

    z=4.9835
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