If the records show that the probability of failing the course is 0.15, what is the probability
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Question:
If the records show that the probability of failing the course is 0.15, what is the probability that at most 2 students out of 20 fail this course?
If the records show that the probability for a student to get a grade B this course is 0.15, what is the probability that exactly 4 students out of 20 will have a grade B for this course?
What is the probability of selecting a grade A student for the first time either in 2nd or 3rd selection?
Grade Count
A 10
B 3
C 3
D 1
F 3
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