1. The systolic blood pressure of 18 year old woman is normal distribution with a mean of 120 mmHg and a standard deviation of 10 mmHg. What percentage of 18 year old women have a systolic blood pressure between 100 mmHg and 140 mmHg?

a) 68% b) 99.7% c) 99.99% d) 96%

2. using rounded data, human body temperature have a mean of 98 degrees F and a standard deviation of 2 degree F. Sally's temperature can be described by z= -1.5. Is Sally's temperature less than or greater than the average temperature?

a) Sally's temperature is less than the average temperature

b) Sally's temperature is greater than the average temperature

c) Sally's temperature is equal to the average temperature