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标题: 求教两道GWD1的题 [打印本页]

作者: meimei5656 时间: 2005-8-27 05:29 标题: 求教两道GWD1的题

求教两道GWD1的题,谢谢了!!!

DS:

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 than 1/10.

求助解题过程.谢谢了!!!

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