MAT 241: Probability Practice, I

Exit Ticket

Dr. Gilbert

January 2, 2026

Exit Ticket Task

Navigate to our MAT241 Exit Ticket Form, answer the questions, and complete the task below.

Note. Today’s discussion is listed as 9. Discrete Probability Lab / Probability Practice

Task: In a routine screening program, the fasting blood glucose level (mg/dL) of adults without diagnosed diabetes is assumed to be approximately normally distributed with mean 95 mg/dL and standard deviation 12 mg/dL.

1. Estimate the probability that a randomly selected individual without diabetes has a fasting blood glucose level between 83 mg/dL and 107 mg/dL.
2. In your own words, explain what it means to say that “fasting blood glucose levels are approximately normally distributed.
3. Suppose that the true distribution is actually right-skewed, with a long upper-tail due to undiagnosed prediabetes or diabetes. How might this impact the probability you calculated in part 1? Is this problematic?