(Answered) Question course grades choose a student at random from all

Statistics

Question: Course grades. Choose a student at random from all who took beginning statistics at Upper Wabash Tech in recent years. The probabilities for the student's grade are

Grade: A B C D or F

Probability: 0.3 0.3 0.3 ?

(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?

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