The annual per capita consumption of bottled water was

30.7

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

30.7

and a standard deviation of

11

gallons.a. What is the probability that someone consumed more than

31

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%

of people consumed less than how many gallons of bottled water?