2015-II-27
答案:A
留意該樣本空間如下:
… Read 留意該樣本空間如下:
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= & \dfrac{8}{12 + 16 +
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= & P^6_6 \times P^7_2
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= & \dfrac{1}{2} \time
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1. & 1 + 2 + 5 &
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= & \dfrac{1}{
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= & \dfrac{C^3_2C^9_
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= & C^{20}_6 + C^{20}_
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= & \dfrac{5 + 20}{5 + 2
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= & C^{13}_5 \time
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= & 1 – 0.7^4 \\
=
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= & C^{14}_3 + C^{15}_