SOLUTION: The mean systolic blood pressure of adult males is normally distributed with a mean of 138 (millimeters of mercury) and a standard deviation of 9.7. What percent of adult males

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Question 208099: The mean systolic blood pressure of adult males is normally
distributed with a mean of 138 (millimeters of
mercury) and a standard deviation of 9.7. What percent
of adult males have blood pressure between 161.28 and
164.9?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The mean systolic blood pressure of adult males is normally
distributed with a mean of 138 (millimeters of
mercury) and a standard deviation of 9.7. What percent
of adult males have blood pressure between 161.28 and
164.9?
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Find the z-value of 161.28 and the z-value of 164.9.
----
If those values are "a" and "b" then:
P(161.28 < x < 164.9) = P(a < z < b) = 0.005422...
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Cheers,
Stan H.