Question

. If A and B are two complementary events, what is the relation between P(A) and P(B)?
(A) P(A) - P(B) = 0
(B) P(A) + P(B)= 1
(C) P(A) = 1 + P(B)
(D) P(B) = 1 + P(A)
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Answer 1

Answer:

Option b) p(a)+p(b)=1

Step-by-step explanation:

for eg:

A- defective case

B- non defective case

A and B cases combine to become a total probability which means 1