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标题: 求高手指点 [打印本页]

作者: dongbo3344    时间: 2011-11-30 15:32     标题: 求高手指点

An equity manager conducted a stock screen on 5,000 U.S. stocks that comprise her investment universe. The results of the screen are presented in the table below.
Criterion
% of Stocks
Meeting Criterion
Price per share/Sales per share <1.25
35.0
Total asset/Equity ≤ 2.5
48.2
Dividends >0
58.6
Consensus forecast EPS >0
75.0
Meeting all 4 criteria simultaneously
10.8
If all the criteria were completely independent of each other, the number of stocks meeting all four criteria would be closest to:
A. 293.
B. 371.
C. 540.
作者: LaiQiangBJ    时间: 2011-11-30 18:29

不晓得。
好像答案是B?用完全独立的概率相乘。
但不知道最后一行的10.8是什么意思....




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