More on course grades. In Exercise 19.7 you explained how to simulate the grade of a randomly chosen student in a statistics course. Five students on the same floor of a dormitory are taking this course. They donâ€™t study together, so their grades are independent. Use simulation to estimate the probability that all five get a C or better in the course. (Simulate 20 repetitions.)
Course grades. Choose a student at random from all who took beginning statistics at Upper Wabash Tech in recent years. The probabilities for the studentâ€™s grade are
(a) What must be the probability of getting a D or an F?
(b) To simulate the grades of randomly chosen students, how would you assign digits to represent the four possible outcomes listed?