Finding Probability In a recent year in the United States, there were 787,650 deaths due to cardiovascular disease, and the population was 312,799,495.

a. Find the crude mortality rate for cardiovascular disease. (This result is sometimes called the cause-specific death rate.)

b. Find the probability that a randomly selected person died of cardiovascular disease and express the result using three significant digits.

c. Find the probability that when three people are randomly selected, none of them died because of cardiovascular disease.