Assume that blood pressure readings are normally distributed with $\mu$ = 120 and $\sigma$ = 8. A blood pressure reading of 145 or more may require medical attention. What percent of people have a blood pressure reading
Greater than 145?
A)0.09%
B)99.91%
C)6.06%
D)11.09%

Question

Quizplus · Accepted Answer

To find the percentage of people with a blood pressure reading greater than 145, we calculate the z-score: $ z = \frac{145 - 120}{8} = 3.125 $. Using the standard normal distribution table, the probability of a z-score greater than 3.125 is approximately 0.09%.

Assume That Blood Pressure Readings Are Normally Distributed With μ\muμ = 120 And

Assume That Blood Pressure Readings Are Normally Distributed With $\mu$ = 120 And