OMG, 吭撒了.
(2009-05-15 13:25:07)
下一個
剛才想起來昨天江蘇省人民醫院大夫被傳染上艾滋病的事。
據文獻報道,艾滋病女傳男的幾率是300分之一。那麽一個女艾滋病毒攜帶者同時傳給4個男醫生的幾率是多少?
用概率統計的語言來說就是,有四個暗箱,每個暗箱裏有一個黑球,299個白球,每次從四個箱子裏各摸一個球,要試多少次才能摸出四個黑球?
無風不起浪,雖然院方發了聲明,但好多這種聲明都turned out to be此地無銀三百兩。Personally, although statistically unlikely when looked at INDIVIDUALLY, I believe this is a true story,they just have tried really really hard for a long long time, and don't forget, in many many many hospitals. lol...
OMG, 吭撒了。