Use the empirical rule to solve the problem.
-The systolic blood pressure of 18-year-old women is a roughly bell-shaped distribution with a mean of 120 mmHg and a standard deviation of 12 mmHg. What percentage of 18-year-old Women have a systolic blood pressure between 96 mmHg and 144 mmHg?
A)99.99%
B)95%
C)99.7%
D)68%

Question

Use the empirical rule to solve the problem.
-The systolic blood pressure of 18-year-old women is a roughly bell-shaped distribution with a mean of 120 mmHg and a standard deviation of 12 mmHg. What percentage of 18-year-old Women have a systolic blood pressure between 96 mmHg and 144 mmHg? 
A)99.99%
B)95%
C)99.7%
D)68%

Quizplus · Accepted Answer

According to the empirical rule, approximately 95% of data in a bell-shaped distribution falls within two standard deviations of the mean. Here, 96 mmHg and 144 mmHg are two standard deviations below and above the mean, respectively.

Use the Empirical Rule to Solve the Problem