If A and B are not mutually exclusive events then: |

If A and B are not mutually exclusive events then:


	$P (A \cup B) = P (A) + P (B) + P (A \cap B)$
	$P (A \cup B) = P (A) + P (B)$
	$P (A \cap B) = P (A) + P (B)$
	$P (A \cup B) = P (A) + P (B) - P (A \cap B)$