A person's level of blood glucose and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean # - 74 and standard deviation of = 21. What is the probability that, for an adult after a 12-hour fast, x is between 60 and 66? O 0.050 O 0.648 O 0.252 O 0.099 O 0.500