Thanks,Xephisiss-231only one star,...I guess,the oringinal quest

来源: 于 2011-02-03 10:45:40 [旧帖] [给我悄悄话] 本文已被阅读：次

We can't use shooting star instead of X-231,so,the question had been canceled.If the Prob.distribution is normal distribution,we can get answer if we know the standard diviation.If S.D=0,P(E)=.32,...ifact,it is <.32.