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标题: GWD 1-2 [打印本页]

作者: freesimens 时间: 2005-7-13 07:17 标题: GWD 1-2

If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p > ATH connecttype="rect" gradientshapeok="t" extrusionok="f">ATH>?

(1) More than of the 10 employees are women.

(2) The probability that both representatives selected will be men is less than .

如何求解?

作者: apply1 时间: 2005-7-13 12:41

If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p >1/2 ?

(1) More than 1/2 of the 10 employees are women.

(2) The probability that both representatives selected will be men is less than1/10.

作者: freesimens 时间: 2005-7-14 06:31

thanks a lot !!!!!!!![em24][em24]

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