'''전확률정리 (total probability theorem), 전체확률법칙 (law of total probability), 전확률공식 (total probability formula)'''

From http://mathworld.wolfram.com/TotalProbabilityTheorem.html
B는 임의의 [[사건,event]]이고, [[상호배타적,mutually_exclusive]] (상호배제, 서로소인?CHK) 사건 n개: $A_1,\cdots,A_n$ 가 있고
A,,i,,일 때 B일 [[조건부확률,conditional_probability]]이 $P(B|A_i)$ 이면
 $P(B)=P(B|A_1)P(A_1)+\cdots+P(B|A_n)P(A_n)$


[[조건부확률,conditional_probability]]
[[베이즈_정리,Bayes_theorem]]

Twins:
[[WpKo:전체_확률의_법칙]]
[[WpEn:Law_of_total_probability]]