一个GRE数学题Of the 700 members of a certain organization,120 are
一个GRE数学题
Of the 700 members of a certain organization,120 are lawyers.Two members of the organization will be selected at random.Which of the following is closet to the probability that neither of the members selected will be a lawyer?
0.5 0.6 0.7 0.8 0.9
Of the 700 members of a certain organization,120 are lawyers.Two members of the organization will be selected at random.Which of the following is closet to the probability that neither of the members selected will be a lawyer?
0.5 0.6 0.7 0.8 0.9
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你能帮帮他们吗