The annual per capita consumption of bottled water was 30.6 gallons. Assume that the per capita consumption of bottled water is approximately normally distributed with a mean of 30.6 and a standard deviation of 10 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 30 and 40 gallons of bottled water?

**c.** What is the probability that someone consumed less than 30 gallons of bottled water?

**d. **97.5% of people consumed less than how many gallons of bottled water?