For two events A and B we are given the probabilities PA = 03 PB = 03 andPA and B = 02 The probability of the complement to the event A or B is

To find the probability of the complement to the event "A or B," we need to find the probability of the event "A or B" and then subtract it from 1.

P(A or B) = P(A) + P(B) - P(A and B) P(A or B) = 0.3 + 0.3 - 0.2 P(A or B) = 0.6 - 0.2 P(A or B) = 0.4

Now, to find the probability of the complement to the event "A or B," we subtract P(A or B) from 1.

P(complement to A or B) = 1 - P(A or B) P(complement to A or B) = 1 - 0.4 P(complement to A or B) = 0.6

Therefore, the probability of the complement to the event "A or B" is 0.6