Assume the mean and standard deviation of diastolic blood pressure as given in exercise 6 (mean of 75mm hg and standard deviation of 3 inches) use the =NORMDIST() function to determine the following:

a.The proportion of the people who have diastolic blood pressure less than 76 mm hg

b. The proportion of people who have diastolic blood pressure is less than 72mm hg

c. The proportion of people who have diastolic blood pressure is greater than 73 mm hg

d. The proportion of people who have diastolic blood pressure is greater than 79 mm hg

c. The proportion of people who have diastolic blood pressure is between 72 and 78 mm hg