题目内容

If an analyst estimates the probability of an event for which there is no historical record, this probability is best described as:

A. a prior probability.
B. a empirical probability.
C. a subjective probability.

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Which of the following is most accurate regarding a distribution of returns that has a mean greater than its median

A. It is positively skewed.
B. It is a symmetric distribution.
C. It has positive excess of kurtosis.

A distribution of returns that has a greater percentage of small deviations from the mean and a greater percentage of extremely large deviations from the mean compared to a normal distribution:

A. is positively skewed.
B. has positive excess kurtosis.
C. has negative excess kurtosis.

The probability that the Dow-Jones Average will increase tomorrow is 3/5. The probability of an increase in the Dow-Jones Average stated as odds is:

A. 2/3
B. 3/2
C. 2/5

根据下表所示的数据解答问题。 ACS公司股票在各年中的回报率年份 2005 2006 2007 2008 2009 回报率(R) 15% -7% 24% 15% -18% Assuming that the distribution of ACS stock returns is a population, what is the population standard deviation

A. 5.8%
B. 15.7%
C. 35.1%