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最新:安省全部三起确诊新冠病例均已治愈! http://www.kwcg.ca/bbs/article-180174-1.html (水城百事)

by 新闻推送, Friday, February 21, 2020, 20:30

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  227 views

现在没有药,是怎么治愈的

by 匿名, Friday, February 21, 2020, 20:31 @ 新闻推送

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  198 views

核酸检测连续2次阴性就算痊愈,但是其准确性只有30-50%的准性

by 匿名, Friday, February 21, 2020, 20:50 @ 匿名

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  215 views

这很坑

by 匿名, Friday, February 21, 2020, 20:54 @ 匿名

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  218 views

听她胡说,50%就是撒骰子,30%反过来用就是70%

by 匿名, Friday, February 21, 2020, 22:12 @ 匿名

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  226 views

你不懂概率

by 匿名, Saturday, February 22, 2020, 10:39 @ 匿名

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  197 views

这还需要懂概率,common sense啊,准确率低于50%肯定得反着用,反着用就是70%.重复两次阳性那么是阴性的概率就在90%

by 匿名, Saturday, February 22, 2020, 12:06 @ 匿名

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  208 views

反着用70%。。。笑死我了。你这概率学的还没有我儿子好。这30%说的是准确率低。反着用准确率也一样低

by 匿名, Saturday, February 22, 2020, 12:10 @ 匿名

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  199 views

准确率50%就是随机,只要不是50%就可以用大样本估计,低于50%就得反着估计。大于50%不管多低,都可以通过大样本提高精度。比如假阳率为0,假阴率99%,准确率只有50.5%,重复n次,准确率可以达到1-.99^n

by 匿名, Saturday, February 22, 2020, 12:22 @ 匿名

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  244 views

按你这么说,搞一个准确率是0%的,反着用还100%了。哈哈

by 匿名, Saturday, February 22, 2020, 12:11 @ 匿名

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  199 views

你真聪明,总算理解了。准确率为0,反着就是100%了。测100例,没一例对的,那它一定是把阳的测成阴的,阴的测成阳的,反着看就是100%

by 匿名, Saturday, February 22, 2020, 12:27 @ 匿名

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  214 views

知道信心指数吗?

by 匿名, Saturday, February 22, 2020, 12:50 @ 匿名

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  200 views

illuminate me

by 匿名, Saturday, February 22, 2020, 12:55 @ 匿名

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  224 views

要多测几遍,两遍太少了,加拿大照这样下去迟早会被自己笨死。

by 匿名, Saturday, February 22, 2020, 22:23 @ 匿名

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  209 views

国内每天也有大量治愈者啊,你在怀疑什么?:-(

by 匿名, Saturday, February 22, 2020, 10:06 @ 匿名

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  190 views

是自愈

by 匿名, Saturday, February 22, 2020, 10:26 @ 匿名

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  201 views

加拿大的新鲜空气和阳光就可以治好肺炎:-) :-) :-)

by 匿名, Friday, February 21, 2020, 21:20 @ 新闻推送

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  204 views

哈哈,有可能,得病雪地里每天站三小时就是治疗

by 匿名, Friday, February 21, 2020, 21:23 @ 匿名

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  220 views

去滑趟雪就可以了,今天天气真好

by 匿名, Saturday, February 22, 2020, 11:49 @ 匿名

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  194 views

无污染的北极圈的的原住民村落可是一个一个的集体消失

by 匿名, Saturday, February 22, 2020, 12:25 @ 匿名

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  201 views

身处陕西,本来没那么害怕,毕竟不算非常厉害,自我隔离就好。但这马上要复工的节奏,把我吓到了,作死咋个个都是能手呢。个人猜测,全国性的人口流动必将导致疫情再次爆发,而且一发而不可收拾,先囤物资吧。可恨啊,刚刚有点稳,就立刻作死,没人能避免。

by 匿名, Saturday, February 22, 2020, 12:42 @ 新闻推送

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  205 views
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