Question 515217
In a group of 1000 male graduate students, how many would you expect to find over 73 inches tall? The mean=70 inches, the standard deviation= 2 inches.

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z(73) = (73-70)/2 = 3/2
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P(x > 73") = P(z > 1.5) = 0.0660
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Expected number = 0.0660*1000 = 66

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Cheers,
Stan H.