{"id":1727,"date":"2024-05-16T10:01:36","date_gmt":"2024-05-16T02:01:36","guid":{"rendered":"http:\/\/jiaohuweike.online\/?p=1727"},"modified":"2024-05-16T10:01:36","modified_gmt":"2024-05-16T02:01:36","slug":"glwt","status":"publish","type":"post","link":"http:\/\/jhwk.online\/?p=1727","title":{"rendered":"\u6982\u7387"},"content":{"rendered":"\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-711932c\" data-block-id=\"711932c\"><\/div>\n\n\n\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-fa21366\" id=\"\u9898\u76ee\" data-block-id=\"fa21366\"><h4 class=\"stk-block-heading__text\">\u9898\u76ee<\/h4><\/div>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>1.\u82e5\u4e8b\u4ef6  A, B  \u6ee1\u8db3  A \\subseteq B , \u4e14  P(A)=0.3, P(B)=0.8 , \u6c42  P(B \\mid \\bar{A}).~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n2.\u8bbe  A, B  \u662f\u4e00\u4e2a\u968f\u673a\u8bd5\u9a8c\u4e2d\u7684\u4e24\u4e2a\u4e8b\u4ef6, \u82e5  P(B)=\\frac{3}{4}, P(A \\mid B)=\\frac{1}{3}, P(A+B)=\\frac{4}{5} ,~~~\\\\\u6c42  P(A).~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>1.\\frac{5}{7};2.\\frac{3}{10}.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/details>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>3.\u6709 3 \u53f0\u8f66\u5e8a\u52a0\u5de5\u540c\u4e00\u578b\u53f7\u7684\u96f6\u4ef6, \u7b2c  1,2,3  \u53f0\u52a0\u5de5\u7684\u6b21\u54c1\u7387\u5206\u522b\u4e3a  6 %, 5 %, 4 % , \u52a0\u5de5\u51fa~~~\\\\\u6765\u7684\u96f6\u4ef6\u6df7\u653e\u5728\u4e00\u8d77. \u5df2\u77e5\u7b2c  1,2,3  \u53f0\u8f66\u5e8a\u52a0\u5de5\u7684\u96f6\u4ef6\u6570\u7684\u6bd4\u4e3a  5: 6: 9 , \u73b0\u4efb\u53d6\u4e00\u4e2a\u96f6~~~~\\\\\u4ef6,\u8bb0\u4e8b\u4ef6  A_{i}=  \u201c\u96f6\u4ef6\u4e3a\u7b2c  i  \u53f0\u8f66\u5e8a\u52a0\u5de5\u201d  (i=1,2,3) , \u4e8b\u4ef6  B=  \u201c\u96f6\u4ef6\u4e3a\u6b21\u54c1\u201d, \u5206\u522b\u6c42\u4e0b\\\\\u5217\u6982\u7387  (\\quad) \n\uff081\uff09P\\left(A_{1}\\right)\uff1b\n\uff082\uff09P\\left(B \\mid A_{2}\\right)\uff1b\n\uff083\uff09P(B)\uff1b\n\uff084\uff09P\\left(A_{1} \\mid B\\right).~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>(1)\\frac{1}{4};(2)5 %;(3)0.048;(4)\\frac{5}{16}.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-718766c\" data-block-id=\"718766c\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button stk-block stk-e808754\" data-block-id=\"e808754\"><style>.stk-e808754{border-top-left-radius:13px !important;border-top-right-radius:13px !important;border-bottom-right-radius:13px !important;border-bottom-left-radius:13px !important;overflow:hidden !important}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" href=\"\/fabu\/%E6%A6%82%E7%8E%87-1\/HTML5\/practice.html\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"stk-button__inner-text\">\u89c2\u770b\u5fae\u8bfe<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>4.\u67d0\u751f\u5728\u4e00\u6b21\u8003\u8bd5\u4e2d, \u5171\u6709 10 \u9053\u9898\u4f9b\u9009\u62e9, \u5df2\u77e5\u8be5\u751f\u4f1a\u7b54\u5176\u4e2d 6 \u9053\u9898, \u968f\u673a\u4ece\u4e2d\u62bd 5 \u9053\u9898~~~~\\\\\u4f9b\u8be5\u751f\u56de\u7b54, \u81f3\u5c11\u7b54\u5bf9 3 \u9053\u9898\u5219\u53ca\u683c, \u6c42\u8be5\u751f\u5728\u7b2c\u4e00\u9898\u4e0d\u4f1a\u7b54\u7684\u60c5\u51b5\u4e0b\u53ca\u683c\u7684\u6982\u7387.~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>\\frac{25}{42}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/details>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>5. \u8bbe\u6709\u7532\u3001\u4e59\u4e24\u7bb1\u6570\u91cf\u76f8\u540c\u7684\u4ea7\u54c1, \u7532\u7bb1\u4e2d\u4ea7\u54c1\u7684\u5408\u683c\u7387\u4e3a  90 % , \u4e59\u7bb1\u4e2d\u4ea7\u54c1\u7684\u5408\u683c\u7387~~\\\\\u4e3a  80 % . \u4ece\u4e24\u7bb1\u4ea7\u54c1\u4e2d\u4efb\u53d6\u4e00\u4ef6, \u7ecf\u68c0\u9a8c\u4e0d\u5408\u683c, \u653e\u56de\u539f\u7bb1\u540e\u5728\u8be5\u7bb1\u4e2d\u518d\u968f\u673a\u53d6\u4e00\u4ef6\u4ea7\u54c1, \\\\\u5219\u8be5\u4ef6\u4ea7\u54c1\u5408\u683c\u7684\u6982\u7387\u4e3a ( ~~~~~~~)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\nA.  \\frac{5}{6} ~~~~~~~\nB.  \\frac{6}{7} ~~~~~~~\nC.  \\frac{7}{8} ~~~~~~~\nD.  \\frac{17}{20} ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>A~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/details>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>6. \u957f\u65f6\u95f4\u73a9\u624b\u673a\u53ef\u80fd\u5f71\u54cd\u89c6\u529b. \u636e\u8c03\u67e5, \u67d0\u6821\u5b66\u751f\u5927\u7ea6  20 %  \u7684\u4eba\u8fd1\u89c6, \u800c\u8be5\u6821\u5927\u7ea6\u6709  10 %  ~~\\\\\u7684\u5b66\u751f\u6bcf\u5929\u73a9\u624b\u673a\u8d85\u8fc7 1 \u5c0f\u65f6, \u8fd9\u4e9b\u4eba\u7684\u8fd1\u89c6\u7387\u7ea6\u4e3a  60 % , \u73b0\u4ece\u6bcf\u5929\u73a9\u624b\u673a\u4e0d\u8d85\u8fc7 1 \u5c0f\u65f6~\\\\\u7684\u5b66\u751f\u4e2d\u4efb\u610f\u8c03\u67e5\u4e00\u540d\u5b66\u751f, \u6c42\u4ed6\u8fd1\u89c6\u7684\u6982\u7387.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>\\frac{7}{45}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/details>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-8b61266\" data-block-id=\"8b61266\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button stk-block stk-c7dea27\" data-block-id=\"c7dea27\"><style>.stk-c7dea27{border-top-left-radius:13px !important;border-top-right-radius:13px !important;border-bottom-right-radius:13px !important;border-bottom-left-radius:13px !important;overflow:hidden !important}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" href=\"\/fabu\/%E6%A6%82%E7%8E%87-2\/HTML5\/practice.html\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"stk-button__inner-text\">\u89c2\u770b\u5fae\u8bfe<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">\u5de9\u56fa<\/h4>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>7.\u76d2\u4e2d\u6709 2 \u4e2a\u7ea2\u7403, 3 \u4e2a\u9ed1\u7403, \u4eca\u968f\u673a\u4ece\u4e2d\u53d6\u51fa\u4e00\u4e2a, \u89c2\u5bdf\u5176\u989c\u8272\u540e\u653e\u56de,\u5e76\u52a0\u4e0a\u540c\u8272\u7403 2 ~~~\\\\\u4e2a,\u518d\u4ece\u76d2\u4e2d\u7b2c\u4e8c\u6b21\u62bd\u53d6\u4e00\u7403,\u5219\u7b2c\u4e8c\u6b21\u62bd\u51fa\u7684\u662f\u9ed1\u7403\u7684\u6982\u7387\u4e3a (~~ )~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\nA.  \\frac{3}{5} ~~~~~~\nB.  \\frac{3}{7} ~~~~~~\nC.  \\frac{5}{7} ~~~~~~\nD.  \\frac{4}{7} ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>A;\u63d0\u793a\uff1a\u5168\u6982\u7387\u95ee\u9898\uff0c\u7b2c\u4e00\u6b21\u62bd\u5230\u7ea2\u7403\u6216\u9ed1\u7403\u4e24\u79cd\u60c5\u51b5\uff0c\\frac{3}{5}\\times \\frac{5}{7}+\\frac{2}{5}\\times \\frac{3}{7}=\\frac{3}{5}~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/details>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>8.\u4e00\u9053\u6709 5 \u4e2a\u9009\u9879\u7684\u8bd5\u9898, \u5176\u4e2d\u53ea\u6709\u4e00\u4e2a\u9009\u9879\u6b63\u786e, \u5047\u5b9a\u5e94\u8003\u4eba\u77e5\u9053\u6b63\u786e\u7b54\u6848\u7684\u6982\u7387\u4e3a  p . \\\\\u5982\u679c\u4ed6\u6700\u540e\u9009\u5bf9\u4e86, \u6c42\u4ed6\u786e\u5b9e\u77e5\u9053\u7b54\u6848\u7684\u6982\u7387. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>\\frac{5p}{4p+1};\u63d0\u793a\uff1a\u8d1d\u53f6\u65af\u516c\u5f0f.\u6700\u540e\u9009\u5bf9\u4e86\u7684\u6982\u7387\u4e3ap+(1-p)\\frac{1}{5},\u77e5\u9053\u7b54\u6848\u4e3ap.~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>9.\u67d0\u5b66\u6821\u6709A,B\u4e24\u5bb6\u9910\u5385\uff0c\u738b\u540c\u5b66\u7b2c1\u5929\u5348\u9910\u65f6\u968f\u673a\u5730\u9009\u62e9\u4e00\u5bb6\u9910\u5385\u7528\u9910\uff0e\u5982\n\u679c\u7b2c1\u5929~\\\\\u53bbA\u9910\u5385\uff0c\u90a3\u4e48\u7b2c2\u5929\u53bbA\u9910\u5385\u7684\u6982\u7387\u4e3a0.6\uff1b\u5982\u679c\u7b2c1\u5929\u53bbB\u9910\u5385\uff0c\u90a3\u4e48\u7b2c2\n\u5929\u53bbA\u9910\u5385\\\\\u7684\u6982\u7387\u4e3a0.8,\u5982\u6b64\u5f80\u590d\u3002~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\(1)\u738b\u540c\u5b66\u7b2c2\u5929\u53bbA\u9910\u5385\u7528\u9910\u7684\u6982\u7387\uff0e~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\(2)\u8bbe\u7b2cn\u5929\u53bbA\u9910\u5385\u7684\u6982\u7387\u4e3aP_n,\u6c42P_{n+1}\u4e0eP_n\u7684\u5173\u7cfb\uff0c\u5e76\u6c42P_n\u7684\u8868\u8fbe\u5f0f.~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>\u7b54\u6848\uff1a(1)0.7;(2)P_{n+1}=P_n\\times0.6+(1-P_n)\\times0.8,P_n=-\\frac{1}{6}(-\\frac{1}{5})^{n-1}+\\frac{2}{3}.~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>10.\u67d0\u4e2d\u836f\u6750\u76d2\u4e2d\u5171\u6709\u5305\u88c5\u76f8\u540c\u7684 7 \u888b\u836f\u6750, \u5176\u4e2d\u515a\u53c2\u6709 3 \u888b, \u9ec4\u82aa\u6709 4 \u888b, \u4ece\u4e2d\u53d6\u51fa\u4e24\u888b, ~~~\\\\\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\uff08~~~~\uff09~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\nA. \u82e5\u6709\u653e\u56de\u62bd\u53d6, \u5219\u53d6\u51fa\u4e00\u888b\u515a\u53c2\u4e00\u888b\u9ec4\u82aa\u7684\u6982\u7387\u4e3a  \\frac{24}{49} ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\nB. \u82e5\u6709\u653e\u56de\u62bd\u53d6, \u5219\u5728\u81f3\u5c11\u53d6\u51fa\u4e00\u888b\u515a\u53c2\u7684\u6761\u4ef6\u4e0b,\u7b2c 2 \u6b21\u53d6\u51fa\u515a\u53c2\u7684\u6982\u7387\u4e3a  \\frac{7}{11}~~~~~~~~~~~~~ \\\\\nC. \u82e5\u4e0d\u653e\u56de\u62bd\u53d6\uff0c\u5219\u7b2c 2 \u6b21\u53d6\u5230\u515a\u53c2\u7684\u6982\u7387\u7b97\u6cd5\u53ef\u4ee5\u662f  \\frac{\\mathrm{C}_{4}^{1} \\mathrm{C}_{3}^{1}+\\mathrm{C}_{3}^{2}}{\\mathrm{C}_{7}^{2}}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \\\\\nD. \u82e5\u4e0d\u653e\u56de\u62bd\u53d6, \u5219\u5728\u81f3\u5c11\u53d6\u51fa\u4e00\u888b\u515a\u53c2\u7684\u6761\u4ef6\u4e0b, \u53d6\u5230\u4e00\u888b\u515a\u53c2\u4e00\u888b\u9ec4\u82aa\u7684\u6982\u7387\u4e3a  \\frac{4}{5} ~\n<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>\u7b54\u6848\uff1aABD.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n<\/details>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-abdcb81\" data-block-id=\"abdcb81\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button stk-block stk-b4992dc\" data-block-id=\"b4992dc\"><style>.stk-b4992dc{border-top-left-radius:13px !important;border-top-right-radius:13px !important;border-bottom-right-radius:13px !important;border-bottom-left-radius:13px !important;overflow:hidden !important}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" href=\"\/fabu\/%E6%A6%82%E7%8E%87-3\/HTML5\/practice.html\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"stk-button__inner-text\">\u89c2\u770b\u5fae\u8bfe<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n\n<!--nextpage-->\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>11.\u67d0\u5546\u57ce\u73a9\u5177\u67dc\u53f0\u4e94\u4e00\u671f\u95f4\u4fc3\u9500\uff0c\u8d2d\u4e70\u7532\u3001\u4e59\u7cfb\u5217\u7684\u76f2\u76d2\uff0c\u5e76\u4e14\u96c6\u9f50\u6240\u6709\u7684\u4ea7\u54c1\u5c31\u53ef~\\\\\u4ee5\u8d60\u9001\u8282\u65e5\u9001\u793c\uff0c\u73b0\u6709\u7532\u3001\u4e59\u4e24\u4e2a\u7cfb\u5217\u76f2\u76d2\uff0c\u6bcf\u4e2a\u7532\u7cfb\u5217\u76f2\u76d2\u53ef\u4ee5\u5f00\u51fa\u73a9\u5076A_1\uff0cA_2\uff0c\\\\A_3\u4e2d\u7684\u4e00\u4e2a\uff0c\u6bcf\u4e2a\u4e59\u7cfb\u5217\u76f2\u76d2\u53ef\u4ee5\u5f00\u51fa\u73a9\u5076B_1\uff0cB_2\u4e2d\u7684\u4e00\u4e2a.\u8bb0\u4e8b\u4ef6E_n:\u4e00\u6b21\u6027\u8d2d\u4e70\\\\n\u4e2a\u7532\u7cfb\u5217\u76f2\u76d2\u540e\u96c6\u9f50\u73a9\u5076A_1\uff0cA_2\uff0cA_3\u73a9\u5076;\u4e8b\u4ef6F_n:\u4e00\u6b21\u6027\u8d2d\u4e70n\u4e2a\u4e59\u7cfb\u5217\u76f2\u76d2\u540e\u96c6\\\\\u9f50B_1\uff0cB_2\u73a9\u5076;\u6c42\u6982\u7387P(E_5)\u53caP(F_4) .~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>\u7b54\u6848\uff1a\\frac{50}{81},\\frac{7}{8}\uff1b\u63d0\u793a\uff1aP(E_5)\u8868\u793a5\u4e2a\u7532\u7cfb\u5217\u7684\u76f2\u76d2\uff0c\u6bcf\u76d2\u90fd\u53ef\u80fd\u662f\u73a9\u5076A_1,A_2,A_3,~~~~~~~\\\\\\therefore5\u76d2\u4e2d\u73a9\u5076\u7684\u4e2a\u6570\u60c5\u51b5\u51713^5\uff0c\u82e5\u4e09\u79cd\u73a9\u5076\u4e2a\u6570\u4e3a1,1,3,\u5171\u6709C_{5}^{3} C_{3}^{1}C_{2}^{1}  \u79cd\u60c5\u51b5\uff0c\u82e5\u4e09\u79cd~\\\\\u73a9\u5076\u4e2a\u6570\u4e3a1,2,2,\u5171\u6709C_{5}^{1} C_{3}^{1} C_{4}^{2}\u79cd\u60c5\u51b5\uff0c \\therefore P(E_5)=\\frac{60+90}{3^5}=\\frac{50}{81}.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\u540c\u7406\uff0cP(F_4)=\\frac{C_{4}^{1}C_{2}^{1}+C_{4}^{2}}{3^4}=\\frac{7}{8}.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n<\/details>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>12.\u73b0\u6709\u7532\u3001\u4e59\u4e24\u4e2a\u888b\u5b50, \u5176\u4e2d\u7532\u888b\u4e2d\u6709 6 \u4e2a\u7ea2\u7403\u548c 2 \u4e2a\u767d\u7403, \u4e59\u888b\u4e2d\u6709 3 \u4e2a\u7ea2\u7403\u548c 5 \u4e2a\u767d~~~~\\\\\u7403, \u4e24\u888b\u5b50\u4e2d\u5c0f\u7403\u5f62\u72b6\u548c\u5927\u5c0f\u5b8c\u5168\u76f8\u540c. \u4ece\u8fd9\u4e24\u4e2a\u888b\u5b50\u4e2d\u9009\u62e9\u4e00\u4e2a\u888b\u5b50, \u518d\u4ece\u8be5\u888b\u5b50\u4e2d~~~~\\\\\u4e00\u6b21\u6478\u51fa\u4e24\u4e2a\u7403, \u79f0\u4e3a\u4e00\u6b21\u8bd5\u9a8c. \u5df2\u77e5\u9009\u62e9\u7532\u888b\u5b50\u7684\u6982\u7387\u4e3a  \\frac{1}{3} , \u9009\u62e9\u4e59\u888b\u5b50\u7684\u6982\u7387\u4e3a  \\frac{2}{3},~~~~~\\\\\u62df\u8fdb\u884c\u591a\u6b21\u91cd\u590d\u8bd5\u9a8c, \u76f4\u5230\u6478\u51fa\u7684\u4e24\u4e2a\u7403\u5747\u4e3a\u7ea2\u7403, \u4e0d\u518d\u8bd5\u9a8c.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(1)\u6c42\u7b2c\u4e00\u6b21\u8bd5\u9a8c\u6478\u51fa\u4e24\u4e2a\u7ea2\u7403\u7684\u6982\u7387;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(2)\u5df2\u77e5\u9700\u8fdb\u884c\u7b2c\u4e8c\u6b21\u8bd5\u9a8c, \u8ba1\u7b97\u7b2c\u4e00\u6b21\u8bd5\u9a8c\u6478\u51fa\u7684\u4e24\u4e2a\u7403\u6765\u81ea\u7532\u888b\u7684\u6982\u7387.~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u7b54\u6848<\/summary>\n \n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>\u7b54\u6848\uff1a(1)\\frac{1}{4},(2)\\frac{13}{63}.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>\u6761\u4ef6\u6982\u7387\u53ca\u5168\u6982\u7387<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[45],"class_list":["post-1727","post","type-post","status-publish","format-standard","hentry","category-glfbl","tag-45"],"blocksy_meta":[],"_links":{"self":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/posts\/1727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1727"}],"version-history":[{"count":0,"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/posts\/1727\/revisions"}],"wp:attachment":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1727"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}