Mathematics, 18.08.2021 01:00 DestinyK8033

Suppose that about 80% of graduating students attend their graduation. A group of 39 students is randomly chosen, and let X be the number of students who attended their graduation. Required:
a. What is the distribution of X?
b. What is the probability that exactly 28 number of students who attended their graduation in this study?
c. What is the probability that less than 28 number of students who attended their graduation in this study?
d. What is the probability that at most 28 number of students who attended their graduation in this study?

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