Q1. A very large company has equal amounts of male and female employees. If a random sample of four employees is selected, what is the probability that all four employees selected are female?
A) 0.0256 B) 0.1600 C) 0.0625.
Q2. A joint probability of A and B must always be: A) greater than or equal to the conditional probability of A given B. B) less than or equal to the conditional probability of A given B. C) less than the probability of A and the probability of B.
Q3. Which of the following is a joint probability? The probability that a: A) stock pays a dividend and splits next year. B) company merges with another firm next year. C) stock increases in value after an increase in interest rates has occurred.
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发表于 2009-1-9 09:23
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