The annual per capita consumption of bottled water was 33.3 gallons. Assume that the per capita consumption of bottled water is approximately normally distributed with a mean of and a standard deviation of 12 gallons.
a. What is the probability that someone consumed more than 33 gallons of bottled? water?
b. What is the probability that someone consumed between 20 and 30 gallons of bottled? water?
c. What is the probability that someone consumed less than 20 gallons of bottled? water?
d. 99.5 of people consumed less than how many gallons of bottled? water?
a. The probability that someone consumed more than 33 gallons of bottled water is ___________.
?(Round to four decimal places as? needed.)
b. The probability that someone consumed between 20 and 30 gallons of bottled water is _____________.
?(Round to four decimal places as? needed.)
c. The probability that someone consumed less than 20 gallons of bottled water is ____________.
?(Round to four decimal places as? needed.)
d. 99.5?% of people consumed less than _______ gallons of bottled water.
?(Round to two decimal places as? needed.)