It is well known that the time it takes to be served an order of wings at a downtown bar, from the moment of placing the order, is normally distributed with a mean of 28 minutes and a standard deviation of 8 minutes.
Q. What is the probability that the wings will be served less than 10 minutes after placing the order.
Q. What is the probability that the wings will take between 16 and 36 minutes to arrive.
Q. Let A be the time by which 90% of the customers will already have been served. Find A.