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    (sh)ęn>GRE(sh)W(xu)}Y(ji)

    GRE(sh)W(xu)}Y(ji)

    r(sh)g2024-07-25 17:50:47

    GRE(sh)W(xu)}Y(ji)

    GRE(sh)W(xu)}Y(ji)

    GRE(sh)W(xu)}Y(ji)

    GRE(sh)W(xu)}Y(ji)

    1.AB¼(d)ABͬr(sh)l(f)ęC(j)ʞ0.3AΪ(d)l(f)ęC(j)ʞ0.5l(f)BęC(j)c0.5ȴС keyAl(f)ĸʞ0.5+0.3=0.8;=0.3=PP=0.8P P=0.3750.5

    ⣺?yn)AΪ(d)l(f)ęC(j)ʞ0.5ABͬr(sh)l(f)rAl(f)ĸʑ(yng)ԓǣAΪ(d)l(f)ABͬr(sh)l(f)֮ͼP=0.5+0.3=0.8

    PP=PP=P/P=0.3/0.8=0.375

    2.AF(xin)ĸ0.6  B F(xin) 0.8, A or b or both.F(xin)ĸc 0.92^С

    ⣺~P=1-0.6=0.4 ~P=1-0.8=0.2 ~ab=0.20.4=0.08 1-0.08=0.92

    C.

    3.320һˣŮĸ0.65@ȺŮжĔ(sh)100ȴС

    ⣺?yn)ֻһԴ}ĸ䌍(sh)ǰٷֱȣ

    Ů˔(sh)320=96 100xB

    4. 1100 xɂ(g)ͬĔ(sh)߽Ԟ 6 ı(sh)ęC(j)?

    ⣺100ﹲ6ı(sh)Ă(g)(sh)100/6=164t16(g)

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    Ñf(xi)h