Total ProbabilityIn Probability, P(E)=∑kP(Hk)P(E∣Hk)P(E) = \sum\limits_{k} P(H_k) P(E|H_k)P(E)=k∑P(Hk)P(E∣Hk) if {Hk}\{H_k\}{Hk} partitions Ω\OmegaΩ
