Midterm Solutions Students in a large university statistics class all take a midterm and a final. An aerobic study involves 1040 men, age 18 to 24. The histogram of systolic blood pressure for these men followed the normal curve quite. The average is 120 mm, and 600 of the men have blood pressures between 110 and 130 mm. Thus 10 mm is .8 SD .
Cholesterol level is in milligrams.
The class intervals include the left endpoint, but not the right. Plot the histogram. The hard part was labeling the axes. Check on option below. The average is smaller than 120 milligrams.