Answer
Let event A = Odd number
and B = number less than 4
A = {1, 3, 5, 7, 9, 11}
B = {1, 2, 3}
P(A) = 6/12 = 1/2
P(B) = 3/12 = 1/4
P(A∩B) = 2/12 = 1/6
P(AUB) = P(A) + P(B) - P(A∩B)
= 1/2 + 1/4 - 1/6
= 7/12
= 0.583
Work Step by Step
As given in answer
