in 2008 the per capita consumption of coffee in the united states was

Question

In 2008, the per capita consumption of coffee in the United States was reported to be 4.2 kg, or 9.24 pounds. Assume that the per capita consumption of coffee in the United States is approximately distributed as a normal random variable, with a mean of 9.24pounds and a standard deviation of 3 pounds.
1. What is the probability that someone in the United States consumed less than 11 pounds of coffee in 2008? 2. What is the probability that someone in the United States consumed between4 and 7 pounds of coffee in 2008? 3. What is the probability that someone in the United States consumed more than 6 pounds of coffee in 2008? 4. 95% of the people in the United States consumed less than how many pounds of coffee?