A study discovered that Americans consumed an average of 10.7 pounds of chocolate per year. Assume that the annual chocolate consumption follows the normal distribution with a standard deviation of 3.8 pounds. Complete parts a through e below. a. What is the probability that an American will consume less than 6 pounds of chocolate next year? :| (Round to four decimal places as needed.) b. What is the probability that an American will consume more than 8 pounds of chocolate next year? :| (Round to four decimal places as needed.) 0. What is the probability that an American will consume between 7 and 11 pounds of chocolate next year? :| (Round to four decimal places as needed.) d. What is the probability that an American will consume exactly 9 pounds of chocolate next year? :| (Round to four decimal places as needed.) a. What is the annual consumption of chocolate that represents the 80th percentile? The 80th percentile is represented by an annual consumption of D pounds of chocolate. (Type an integer or decimal rounded to one decimal place as needed.)