Exam (128).pdf - Question A bond analyst was given a list of 12 corporate bonds From that list she selected 3 whose ratings she felt were in danger of

Exam (128).pdf - Question A bond analyst was given a list...

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Question: A bond analyst was given a list of 12 corporate bonds. From that list she selected 3 whose ratings she felt were in danger of being downgraded in the next year. In actuality, a total of 4 of the 12 bonds on the list had their ratings downgraded in the next year. Suppose that the analyst had simply chosen 3 bonds randomly from this list. What is the probability that at least 2 of the chosen bonds would be among those whose ratings were to be downgraded in the next year? Answer : Hypergeometric Suppose that the population size N and a random sample of size n is chosen from population N , in that population number of success is S . The distribution of the number of successes,
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  • Summer '16
  • boer
  • Probability, Randomness, analyst, Discrete probability distribution, Bond Analyst

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