2011 统考高级数学I 2011.10.27 选择题

1.E    2.C    3.B    4.B    5.A    6.A    7.D    8.C    9.B    10.B

11.D    12.E    13.D    14.A    15.C    16.B    17.E    18.C     19.E     20.A

One thought on “2011 统考高级数学I 2011.10.27 选择题

  1. 我有問題要問 !!!
    假設甲,乙兩個袋子,甲袋內有7個白球3個紅球,乙袋內有2個白球8個紅球。某人從甲乙兩袋中任選一袋,假設他選中甲袋的機率為2/3,選中乙袋的機率為1/3,接著再從選出的袋子中隨機選取一球,已知此球的顏色是紅球,求此球分別來自甲,乙兩袋的機率為何 ?

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