根据下表所示的频数分布解答问题: 频数分布 区间 频数 -10%≤R<0% 5 0%≤R<10% 8 10%≤R<20% 7 20%≤R<30% 4 30%≤R≤40% 2 The relative frequency of the third interval is:
A. 26.3%
B. 33.4%
C. 45.6%
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根据下表所示的频数分布解答问题: 频数分布 区间 频数 -10%≤R<0% 5 0%≤R<10% 8 10%≤R<20% 7 20%≤R<30% 4 30%≤R≤40% 2 The sample size of this frequency distribution is:
A. 1
B. 5
C. 26
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 mode return for ACS stock
A. -7.0%
B. 15.0%
C. 24.0%
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. 2.9%
B. 3.4%
C. 5.8%
What is the effective annual yield for a T-bill that is selling for $48000, with a face of $50000, and 270 days remaining until maturity
A. 3.2%
B. 5.7%
C. 6.4%