The manager of a cultured pearl farm has received a special order for five pearls between 7 millimeters and 9 millimeters in diameter. from past experience, the manager knows that the pearls found in his oyster bed have diameters that are normally distributed with a mean of 8 millimeters and a standard deviation of 2.2 millimeters. assume that every oyster contains one pearl. what is the probability that the special order can be filled after randomly selecting and opening the first five oysters?