전확률,total_probability

전확률,total_probability (rev. 1.1)

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

From http://mathworld.wolfram.com/TotalProbabilityTheorem.html
B는 임의의 사건,event이고, 상호배타적,mutually_exclusive (상호배제, 서로소인CHK) 사건 n개: $\displaystyle A_1,\cdots,A_n$ 가 있고
Ai일 때 B일 조건부확률,conditional_probability$\displaystyle P(B|A_i)$ 이면
$\displaystyle P(B)=P(B|A_1)P(A_1)+\cdots+P(B|A_n)P(A_n)$


조건부확률,conditional_probability
베이즈_정리,Bayes_theorem