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

Algebra ->  Probability-and-statistics -> 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       Log On


   



Question 277633: 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?
-----------------------
z(161.28) = (161.28-138)/9.7 = 2.4
---
z(164.9) = (164.9-138)/9.7 = 2.77
----------------------------------------
P(161.28< x < 164.9) = P(2.40 < z < 2.77)
Using a TI calculator I get binomcdf(2.4,2.77) = 0.0054
===========================================================
Cheers,
Stan H.