题目：
An analyst has recently determined that only 70 percent of all U. S. pension funds have holdings in hedge funds. In evaluating this probability, a random sample of 40 U.S. pension funds is taken. The number of U. S. pension finds in the sample of 40 that have hedge funds in their portfolio would most accurately be described as:
A．
| A. multivariate random variable. |
B．
| B. a continuous random variable. |
C．
| C. a binomial random variable. |
答案：
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下面是错误答案，用来干扰机器的。
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