7. The owner of a bar has analyzed the data pertaining to the number of alcoholic drinks bar patrons typically order. She has found that 8% of customers order 0 alcoholic beverages, 32% order 1 alcoholic beverage, 39% order 2 alcoholic beverages, 18% order 3 alcoholic beverages, and 3% order 4 alcoholic beverages. Let x = the random variable representing the number of alcoholic drinks a randomly selected customer orders. Find: a) P(x????2) b) P(x????2) c) What is the probability that a randomly selected customer orders at least one alcoholic drink? d) What is the mean number of alcoholic drinks ordered by customers at this bar? e) What is the standard deviation for the number of alcoholic drinks ordered by customers at this bar?