For any two events A and B in a sample space

MATHEMATICS · Single correct · A Level · Mathematics · Probability · Probability

Problem

For any two events A and B in a sample space, which of the following statements must always hold true? (a)

P(A\cap B)=P(A)\,P(B)

(b)

P(A')=1+P(A)

(c)

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

(d)

P(A\cup B)=P(A)+P(B)