—、单项选择题

　　1、Last year,the average salary increase for poultry research assistants was 2.5%.Of the 10,000 poultry research assistants,2,000 received raises in excess of this amount.The odds that a randomly selected poultry research assistant received a salary increase in excess of 2.5%are:

　　A.20%.

　　B.1 to 5.

　　C.1 to 4.

　　2、Which of the following statements concerning kurtosis is least accurate?

　　A.A distribution that is more peaked than a normal distribution is leptokurtic.

　　B.A leptokurtic distribution has excess kurtosis less than zero.

　　C.A leptokurtic distribution has fatter tails than a normal distribution.

　　3、A distribution with a mean that is less than its median most likely:

　　A.is positively skewed.

　　B.has negative excess kurtosis.

　　C.is negatively skewed.

　　4、A distribution with a mode of 10 and a range of 2 to 25 would most likely be:

　　A.positively skewed.

　　B.normally distributed.

　　C.negatively skewed.

　　5、A higher Sharpe ratio indicates:

　　A.lower volatility of returns.

　　B.a higher excess return per unit of risk.

　　C.a lower risk per unit of return.

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