2. Suppose that the amount of protein in certain type of energy bar is Normally Distributed with a mean of 8.5 grams with a standard deviation of 0.45 grams. Suppose that a random bar of this type is selected. a. Find the probability that a bar has more than 9 grams of protein. b. Find the probability that a bar has between 8.25 and 8.75 grams of protein. c. Find the probability that a bar has less than 8.9 grams of protein. d. Find the 90th percentile of the grams of protein in these bars. e. Find the values v and w such that the middle 90% of protein amounts fall between v and w.