?????dota2??zlqiszlq | ???????2014-09-01 10:39 | 40407??????: |
?з???????????97???????б???62?????????????63.91% ??????????????57.8125%?????????????????±?????????????????????????? ???豩???????p??Xi?????i??????????????1?????????0?????±???????????????? Y=(X1+X2+...+X97)/97 ????Xi????????????????????????????????????????????????Y???????p???????p(1-p)/97??????????????????????Y????N(0.578125,0.002514)??????P(Y>=0.6391) < 0.000001 |