[CFA level 1模拟真题]Version 4 Questions－Q13 face, only, recently, percent, number

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Q13   An analyst has recently determined that only 60 percent of all U.S. pension funds have holdings in hedge funds. In evaluating this probability, a random sample of 50 U.S. pension funds is taken. The number of U.S. pension funds in the sample of 50 that have hedge funds in their portfolio would most accurately be described as:

A . a binomial random variable.

B. a Bernoulli random variable

C. a continuous random variable

D. multivariate random variable

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答案和详解如下：

Q13.   A  07 Modular Level I, Vol. 1, pp.372-375   Study Sessions 3-9-d

This is a Bernoulli trial because a U.S. pension fund either has investments in hedge funds or it does not; i.e., the experiment must have one of two outcomes. A binomial random variable is defined as the number of successes in Bernoulli trials.

hollow

a

cfa122

什么呀，看不懂

47dx

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xu7431

a

godmary

a

LEEFEI571

可能是A

水模样

a

wangxuepin

a