单选题
The number of days a particular stock increases in a given five - day
period is uniformly distributed between zero and five inclusive. In a given five
-day trading week, what is the probability that the stock will increase exactly
three days?
- A. 0.333.
- B. 0.200.
- C. 0.167.
【正确答案】
C
【答案解析】If the possible outcomes are X: (0,1,2,3,4,5) , then the probability of each of the six outcomes is 1/6 =0.167.