Question

Events A and B are disjointed. P(A) =4/11 ; P(B) =3/11 .
Find P(A or B).

Answer 1

p(a or b)=p(a)×p(b)
=4/11 ×3/11=12/121
is your answer

Answer 2

Answer:

7 / 11

Step-by-step explanation:

In the events, if there are not even a single outcome that is common in between the events, then they are disjoint events.

If two events are mutually exclusive, then the probability of either occurring is the sum of the probabilities of each occurring. (source-google)

This means, the probability of the two disjoint events can be obtained by using the formula, P (A or B) = P(A) + P(B)

P (A or B) = P(A) + P(B)

P (A or B) = 3/11 + 4/11

P (A or B) = 7/11

The probability of two disjoint events A or B is 7/11