Khansen

Thank you so much I did end up figuring this all out. Yes we use the z- scores for this type of problem. Just for general knowledge I guess. LOL but thank you again so very much I do appreciate all the help. You two came the closest to the answer than any one else I asked.

A person's blood glucose level 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. After a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean μ=85 and standard deviation σ=25. After 50 years of age, both the mean and the standard deviation tend to increase. What is the probability that, for an adult (under 50 years old) after 12-hour fast, (a) x is more than 60? (b) x is less than 110? © x is between 60 and 110? (d) x is greater than 140 (borderline diabetes starts at 140)?