In 2016, the per capita consumption of soft drinks in the United States was reported to be 642 eight-ounce servings. Assume that the per capita consumption of soft drinks in the United States is approximately normally distributed with a mean of 642 eight-ounce servings and a standard deviation of 100 eight-ounce servings.

a. What is the probability that someone in the United States consumed more than 750 eight-ounce servings in 2016?

b. What is the probability that someone in the United States consumed between 450 and 500 eight-ounce servings in 2016?

c. What is the probability that someone in the United States consumed less than 450 eight-ounce servings in 2016?

d. Ninety-nine percent of the people in the United States consumed less than how many servings of eight-ounce soft drinks in 2016?