题目内容

At a charity ball, the names of 300 people are put into a box. Six of the names are identical. On a random draw, what is the probability that one of these six names will be drawn

A. 0.02
B. 0.05
C. 0.20

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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% What is the arithmetic mean return for ACS stock

A. 5.5%
B. 12.6%
C. It cannot be determined because the returns of 2006 and 2009 are negative.

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% What is the median return for ACS stock

A. 3.0%
B. 3.4%
C. 15.0%

An analyst gathered the following information about a common stock portfolio: ●arithmetic mean return 14.3% ●geometric mean return 12.7% ●variance of returns 380 ●portfolio beta 1.35 If the risk-free rate of return is 4.25 percent, the coefficient of variation is closest to:

A. 0.52
B. 1.36
C. 1.53

For a skewed distribution, what is the minimum percentage of the observations that will lie between + 4 standard deviations of the mean based on Chebyshev"s inequality

A. 73.4%
B. 80.0%
C. 93.8%