The annual per capita consumption of bottled water was

30.1 gallons. Assume that the per capita consumption of bottled water is approximately normally distributed with a mean of 30.1

and a standard deviation of 12 gallons.

a. What is the probability that someone consumed more than

40 gallons of bottled water?

b. What is the probability that someone consumed between 30 and 40

gallons of bottled water?

c. What is the probability that someone consumed less than

30

gallons of bottled water?

d. 90% of people consumed less than how many gallons of bottled water?