Suppose that a finite class contains 40% freshmen,10% sophomores, 10% juniors, and the rest seniors. Suppose that 10% freshmen, 30% sophomores, 60% juniors, and 70% of seniors pass the class. Answer the following questions:   1.Given that the student is a sophomore, what is the probability that she fails the class?       2.What is the probability that a randomly selected student passes the class?     3.What is the probability that a randomly selected student is a senior that passes the class?

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A: Given,no.of red marbles=6no.of blue marbles=7Total no.of marbles=13

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A: Given that class has 8 freshmen, 5 sophomores, 4 juniors, and 2 seniors. Total = 8+5+4+2 = 19

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A: Introduction: Denote X as the random variable representing the number of female students in the…

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A:

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A: Here Given total Number of customer=8