distributionQuizSolutions

# distributionQuizSolutions - Distribution Quiz Solutions 1...

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Distribution Quiz Solutions 1. Jim failed his math exam. So to prepare for the final exam, he decides he wants to find a tutor who passed the math exam in the past. The probability of a student passing the math exam was 1/3. He asks every student he encounters if they have passed the math exam until he finds the first student who has passed the exam. Let X denote the number of students he asks until he encounters the first student who passed the exam. The random variable X has a geometric distribution and its parameter is p = 1/3. 2. Erica wants to make 5 batches of rice crispy treats for her Lifetime girls night but realizes that she has no marshmallows. Knowing her ten neighbors well, she determines that the probability of a neighbor having a bag of marshmallows is 2/5 and the events that each neighbor has marshmallows are independent. Let X denote the number of bags of marshmallows that Erica can mooch off of her ten neighbors.

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distributionQuizSolutions - Distribution Quiz Solutions 1...

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