{"id":1653,"date":"2011-08-13T11:10:00","date_gmt":"2011-08-13T03:10:00","guid":{"rendered":""},"modified":"2013-11-13T09:04:30","modified_gmt":"2013-11-13T01:04:30","slug":"%e8%b6%a3%e9%a2%98%ef%bc%9a%e5%85%ac%e5%8f%b8%e5%ba%94%e8%af%a5%e9%9b%87%e7%94%a8%e5%a4%9a%e5%b0%91%e5%91%98%e5%b7%a5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/kyle.ai\/blog\/1653.html","title":{"rendered":"\u8da3\u9898\uff1a\u516c\u53f8\u5e94\u8be5\u96c7\u7528\u591a\u5c11\u5458\u5de5\uff1f"},"content":{"rendered":"<p>\u67d0\u5927\u516c\u53f8\u6709\u8fd9\u4e48\u4e00\u4e2a\u89c4\u5b9a\uff1a\u53ea\u8981\u6709\u4e00\u4e2a\u5458\u5de5\u8fc7\u751f\u65e5\uff0c\u5f53\u5929\u6240\u6709\u5458\u5de5\u5168\u90e8\u653e\u5047\u4e00\u5929\u3002\u4f46\u5728\u5176\u4f59\u65f6\u5019\uff0c\u6240\u6709\u5458\u5de5\u90fd\u6ca1\u6709\u5047\u671f\uff0c\u5fc5\u987b\u6b63\u5e38\u4e0a\u73ed\u3002\u8fd9\u4e2a\u516c\u53f8\u9700\u8981\u96c7\u7528\u591a\u5c11\u5458\u5de5\uff0c\u624d\u80fd\u8ba9\u516c\u53f8\u4e00\u5e74\u5185\u6240\u6709\u5458\u5de5\u7684\u603b\u5de5\u4f5c\u65f6\u95f4\u671f\u671b\u503c\u6700\u5927\uff1f<\/p>\n<p>\u5047\u8bbe\u4e00\u5e74\u6709 365 \u5929\uff0c\u6bcf\u4e2a\u5458\u5de5\u7684\u751f\u65e5\u90fd\u6982\u7387\u5747\u7b49\u5730\u5206\u5e03\u5728\u8fd9 365 \u5929\u91cc\u3002<\/p>\n<p>\u4f60\u7684\u7b2c\u4e00\u611f\u89c9\u6216\u8bb8\u662f\uff0c\u516c\u53f8\u5e94\u8be5\u96c7\u7528 100 \u591a\u4eba\uff0c\u6216\u8005 200 \u591a\u4eba\u5427\u3002\u7b54\u6848\u6216\u8bb8\u4f1a\u8ba9\u4f60\u5927\u5403\u4e00\u60ca\uff1a\u516c\u53f8\u5e94\u8be5\u96c7\u7528 365 \u4e2a\u4eba\u3002\u6ce8\u610f\uff0c\u96c7\u7528 365 \u4e2a\u4eba\u5e76\u4e0d\u610f\u5473\u7740\u5168\u4f53\u5458\u5de5\u5168\u5e74\u7684\u603b\u5de5\u4f5c\u65f6\u95f4\u4e3a 0 \uff0c\u56e0\u4e3a 365 \u4e2a\u4eba\u7684\u751f\u65e5\u90fd\u662f\u968f\u673a\u7684\uff0c\u6070\u597d\u6bcf\u5929\u90fd\u6709\u4e00\u4e2a\u4eba\u8fc7\u751f\u65e5\u7684\u6982\u7387\u6781\u5c0f\u6781\u5c0f\u3002\u4e0b\u9762\u6211\u4eec\u5c31\u6765\u8bc1\u660e\uff0c\u8fd9\u4e2a\u95ee\u9898\u7684\u6700\u4f18\u89e3\u5c31\u662f 365 \u4eba\u3002<\/p>\n<p>\u7531\u4e8e\u671f\u671b\u503c\u6ee1\u8db3\u7ebf\u6027\u5173\u7cfb\uff08\u5373\u5bf9\u4e8e\u968f\u673a\u53d8\u91cf X \u548c Y \u6709 E(X) + E(Y) = E(X+Y) \uff09\uff0c\u56e0\u6b64\u6211\u4eec\u53ea\u9700\u8981\u8ba9\u6bcf\u4e00\u5929\u5458\u5de5\u603b\u5de5\u4f5c\u65f6\u95f4\u7684\u671f\u671b\u503c\u6700\u5927\u5c31\u53ef\u4ee5\u4e86\u3002\u5047\u8bbe\u516c\u53f8\u91cc\u6709 n \u4e2a\u4eba\uff0c\u90a3\u4e48\u5728\u7279\u5b9a\u7684\u4e00\u5929\u91cc\uff0c\u6ca1\u6709\u4eba\u8fc7\u751f\u65e5\u7684\u6982\u7387\u662f (364\/365)n\u00a0\u3002\u56e0\u6b64\uff0c\u8fd9\u4e00\u5929\u7684\u671f\u671b\u603b\u5de5\u4f5c\u65f6\u95f4\u5c31\u662f n \u00b7 (364\/365)n\u00a0\u4e2a\u5de5\u4f5c\u65e5\u3002\u4e3a\u4e86\u8003\u5bdf\u51fd\u6570 n \u00b7 (364\/365)n\u00a0\u7684\u589e\u51cf\u6027\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e0b ((n+1) \u00b7 (364\/365)n+1) \/ (n \u00b7 (364\/365)n) \u7684\u503c\uff0c\u5b83\u7b49\u4e8e (364 \u00b7 (n+1)) \/ (365 \u00b7 n) \u3002\u5982\u679c\u5206\u5b50\u6bd4\u5206\u6bcd\u5c0f\uff0c\u89e3\u5f97 n &gt; 364 \u3002\u53ef\u89c1\uff0c\u8981\u5230 n = 365 \u4ee5\u540e\uff0c\u51fd\u6570\u624d\u662f\u9012\u51cf\u7684\u3002<\/p>\n<p>\u8fd9\u4e2a\u95ee\u9898\u7684\u7b54\u6848\u975e\u5e38\u51fa\u4eba\u610f\u6599\uff0c\u53cd\u76f4\u89c9\u6027\u6050\u6015\u4e0d\u4e9a\u4e8e\u7ecf\u5178\u7684\u751f\u65e5\u6096\u8bba\u3002\u5b83\u5e94\u8be5\u53ef\u4ee5\u770b\u4f5c\u662f\u751f\u65e5\u6096\u8bba\u756a\u5916\u7bc7\u4e86\u5427\u3002\u5bf9\u4e8e\u8fd9\u4e2a\u7b54\u6848\uff0c\u8fd8\u6709\u4ec0\u4e48\u66f4\u76f4\u89c2\uff0c\u66f4\u6709\u542f\u53d1\u6027\u7684\u89e3\u91ca\u5417\uff1f\u5927\u5bb6\u4e00\u8d77\u6765\u60f3\u60f3\u5427\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u67d0\u5927\u516c\u53f8\u6709\u8fd9\u4e48\u4e00\u4e2a\u89c4\u5b9a\uff1a\u53ea\u8981\u6709\u4e00\u4e2a\u5458\u5de5\u8fc7\u751f\u65e5\uff0c\u5f53\u5929\u6240\u6709\u5458\u5de5\u5168\u90e8\u653e\u5047\u4e00\u5929\u3002\u4f46\u5728\u5176\u4f59\u65f6\u5019\uff0c\u6240\u6709\u5458\u5de5\u90fd\u6ca1\u6709\u5047\u671f\uff0c\u5fc5\u987b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1653","post","type-post","status-publish","format-standard","hentry","category-default"],"_links":{"self":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1653","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/comments?post=1653"}],"version-history":[{"count":1,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1653\/revisions"}],"predecessor-version":[{"id":3866,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1653\/revisions\/3866"}],"wp:attachment":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/media?parent=1653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/categories?post=1653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/tags?post=1653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}