| $ A$ | $\bar A$ | ||
|---|---|---|---|
| $B$ | $P(A \cap B)$ | $P(\bar A \cap B)$ | $P(B)$ |
| $\bar B $ | $ P(A \cap \bar B $) | $P(\bar A \cap\bar B )$ | $P(\bar B )$ |
| $P(A)$ | $P(\bar A )$ | $1$ |
Dabei gilt:
$ P(A\cap B)=P(A)\cdot P_A(B) $
$ P(A\cap \bar B)=P(A)\cdot P_A(\bar B) $
$ P(\bar A\cap B)=P(\bar A)\cdot P_{\bar A}(B) $
$ P(\bar A\cap \bar B)=P(\bar A)\cdot P_{\bar A}(B) $