A person's blood glucose level and diabetes are closely related.Let x be a random variable measured in milligrams ofglucose per deciliter (1/10 of a liter) of blood. Suppose thatafter a 12-hour fast, the random variable x will have adistribution that is approximately normal with mean ? = 90and standard deviation ? = 20. Note: After 50years of age, both the mean and standard deviation tend toincrease. For an adult (under 50) after a 12-hour fast, find thefollowing probabilities. (Round your answers to four decimalplaces.)
(a) x is more than 60
(b) x is less than 110
(c) x is between 60 and 110
(d) x is greater than 125 (borderline diabetes starts at125)
