一道样本比例问题 - V2EX
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BeginMan

一道样本比例问题

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  •   BeginMan Jun 3, 2017 2787 views
    This topic created in 3250 days ago, the information mentioned may be changed or developed.

    一些随机样本,每组分别为(N, M), N <= M, 则比例为: N/M, 如下样本:

    • A: (1, 1), 比例: 1/1 = 1
    • B: (29, 30), 比例: 29/30 = 0.9666
    • C: (47, 50), 比例: 47/50 = 0.94
    • .....

    目标是:比例最高的一组

    问题:

    对于一些极小值如 1/1 虽然 100%,但是样本量少,不可信,所以要取样本较多的来统计,如 B 和 C 组,B 比例>C,如果排除 A 的干扰,那么应该取比例较高的 B,但 C 的样本量明显大于 B,所以数据比较可信的是 C。

    对于这些(M, N)随机的情况, 请问更好的如何处理?请推荐些算法,思路等

    7 replies    2017-06-04 00:31:43 +08:00
    isb
        1
    isb  
       Jun 3, 2017 via iPhone   3
    看成了一本道样本分析……我去面壁了。
    RecursiveG
        2
    RecursiveG  
       Jun 3, 2017 via iPhone
    大概可以参考一下置信区间的思路?
    luoruiin
        3
    luoruiin  
       Jun 3, 2017
    看成了一本道
    ho121
        4
    ho121  
       Jun 3, 2017 via Android
    看比例结果是一个什么样的分布,然后把分布图的两头(或一头)的结果去除不做考虑。
    upczww
        5
    upczww  
       Jun 3, 2017 via Android
    同看成一本道。。。
    wmq5451532
        6
    wmq5451532  
       Jun 3, 2017
    看成了一本道的路过
    eDeeraiD0thei6Oh
        7
    eDeeraiD0thei6Oh  
       Jun 4, 2017
    ……
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