Question

Probability that A wins the race is 1/2 and B wins the race is 2/3. Then probability that A or B wins the race is
0 2/3
O 1/3
5/6
o 1/2​

Answer 1

Step-by-step explanation:

It is 1/2 .

If they both join the same competition,

P(A lose and B lose) =1−16−13=12.

Let’s see what confuses people.

When A and B are joining different competitions,

P(A loses) =1−13=23

P(B loses) =1−16=56

P(A and B lose)

= P((A loses) ∩ (B loses))

= P(A loses) × P(B loses)

=23×56

=59

The two situations are totally different.

Answer 2

1/3 will be your answer