{"id":924,"date":"2020-06-04T11:00:00","date_gmt":"2020-06-04T02:00:00","guid":{"rendered":"https:\/\/develop-chronos.com\/statistics-top\/statistics\/?p=924"},"modified":"2020-06-01T13:33:54","modified_gmt":"2020-06-01T04:33:54","slug":"probability-independent","status":"publish","type":"post","link":"https:\/\/develop-chronos.com\/statistics-top\/statistics\/probability-independent","title":{"rendered":"\u78ba\u7387\u306e\u72ec\u7acb\u6027\u3010\u610f\u5473\u3068\u78ba\u8a8d\u65b9\u6cd5\u3092\u89e3\u8aac\u3011"},"content":{"rendered":"\n

\u5b66\u7fd2\u30ec\u30d9\u30eb\uff1a\u4e2d\u5b66\u751f\u3000\u96e3\u6613\u5ea6\uff1a\u2605\u2606\u2606\u2606\u2606<\/span><\/p>\n\n\n\n\n\n\n\n

\u78ba\u7387\u3092\u52c9\u5f37\u3059\u308b\u4e0a\u3067\u3001\u907f\u3051\u3066\u901a\u308c\u306a\u3044\u78ba\u7387\u306e\u72ec\u7acb\u6027\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u78ba\u7387\u306e\u72ec\u7acb\u6027\u306e\u5b9a\u7fa9\u306b\u306f\u3001\u6761\u4ef6\u4ed8\u304d\u78ba\u7387\u306e\u5b9a\u7fa9\u3092\u7528\u3044\u308b\u306e\u3067\u3001\u6761\u4ef6\u4ed8\u304d\u78ba\u7387\u304c\u5206\u304b\u3089\u306a\u3044\u65b9\u306f\u3001\uff1c\u6761\u4ef6\u4ed8\u304d\u78ba\u7387\u306e\u8a18\u4e8b\uff1e<\/a>\u3092\u3042\u3089\u304b\u3058\u3081\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n

\u78ba\u7387\u306e\u72ec\u7acb\u6027<\/h3>\n\n\n\n
<\/div>

\u78ba\u7387\u306e\u72ec\u7acb\u6027\u306b\u3064\u3044\u3066\u5b9a\u7fa9\u3057\u3066\u3044\u304d\u307e\u3059\u3002
\u3082\u3057\u72ec\u7acb\u6027\u304c\u8a8d\u3081\u3089\u308c\u308b\u306a\u3089\u3001\u8a08\u7b97\u304c\u304b\u306a\u308a\u697d\u306b\u306a\u308b\u306e\u3067\u3001
\u8a08\u7b97\u4e0a\u3001\u91cd\u8981\u306a\u6027\u8cea\u306b\u306a\u308a\u307e\u3059\u3002<\/p>

<\/div><\/div><\/div>\n\n\n\n
\u72ec\u7acb\u6027(independent)<\/strong><\/div>\n
\u4e8b\u8c61\\(A\\)\u304c\u8d77\u3053\u308b\u78ba\u7387\u3068\u3001\u4e8b\u8c61\\(B\\)\u304c\u8d77\u3053\u308b\u78ba\u7387\u304c\u72ec\u7acb\u3067\u3042\u308b\u3068\u306f\u3001$$\\mathrm{P}(A)=\\mathrm{P}(A|B)\\ \\ \\ \u307e\u305f\u306f\\ \\ \\ \\mathrm{P}(B)=\\mathrm{P}(B|A)$$\u304c\u6210\u7acb\u3059\u308b\u3053\u3068\u3092\u3044\u3044\u307e\u3059\u3002\u78ba\u7387\u306e\u4e57\u6cd5\u5b9a\u7406\u3092\u7528\u3044\u308b\u3068\u3001\u4e0a\u306e\u6761\u4ef6\u306f\u6b21\u306e\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u3089\u308c\u307e\u3059\u3002$$\\mathrm{P}(A\\cap B)=\\mathrm{P}(A)\\cdot\\mathrm{P}(B)$$<\/div>\n

 <\/p>\n\n\n\n

<\/div>

\u3082\u3046\u5c11\u3057\u5206\u304b\u308a\u3084\u3059\u304f\u3059\u308b\u3068
\u4e8b\u8c61\\(A\\)\u304c\u51fa\u308b\u78ba\u7387\u306f\u4e8b\u8c61\\(B\\)\u306b\u3088\u308b\u7d50\u679c\u306b\u5de6\u53f3\u3055\u308c\u306a\u3044\u3068\u304d\u3092\u72ec\u7acb\u3068\u3044\u3044\u307e\u3059\u3002<\/p>

<\/div><\/div><\/div>\n\n\n\n

\u5177\u4f53\u4f8b<\/h4>\n\n\n\n

\u30b5\u30a4\u30b3\u30ed\u3092\u632f\u3063\u305f\u3068\u304d\u306b\\(1\\)\u304c\u51fa\u308b\u4e8b\u8c61\u3092\\(A\\)\u3001\\(6\\)\u304c\u51fa\u308b\u4e8b\u8c61\u3092\\(B\\)\u3068\u3057\u307e\u3059\u30021\u56de\u76ee\u306b\\(1\\)\u304c\u51fa\u305f\u4e0b\u3067\u30012\u56de\u76ee\u306b\\(6\\)\u304c\u51fa\u308b\u78ba\u7387\u3092\u6c42\u3081\u3066\u307f\u307e\u3059\u3002\u3059\u308b\u3068

\\begin{align}
\\mathrm{P}(A\\cap B) = \\frac{1}{36}
\\end{align}<\/div>
\u3068\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3055\u3089\u306b
\\begin{align}
\\mathrm{P}(A)\\cdot\\mathrm{P}(B) = \\frac{1}{6}\\cdot\\frac{1}{6} = \\frac{1}{36}
\\end{align}<\/div>
\u3068\u306a\u308b\u3053\u3068\u304c\u5206\u304b\u308b\u306e\u3067\u3001$$\\mathrm{P}(A\\cap B)=\\mathrm{P}(A)\\cdot\\mathrm{P}(B)$$\u304c\u6210\u7acb\u3059\u308b\u306e\u3067\u3001\u4e8b\u8c61\\(A\\)\u3068\u4e8b\u8c61\\(B\\)\u306e\u78ba\u7387\u306f\u304a\u4e92\u3044\u306b\u72ec\u7acb\u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u78ba\u7387\u306e\u72ec\u7acb\u6027\u306e\u307e\u3068\u3081<\/h3>\n\n\n\n

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