00:01
In this problem, we are given that there are two events, a and b, such that the probability of the event a, this is 0 .18.
00:09
Probability of the event b, well, that's equal to 0 .45.
00:13
And the probability of a or b, which is nothing but the probability of a union b, this is 0 .54.
00:20
So in the first case, we have to get the probability of a and b, which is the probability of a intersection b.
00:26
And to get this, we simply use this formula and put the values.
00:30
And when we do that, we will get 0 .54 equal to 0 .18 plus 0 .55 minus probability of a intersection b.
00:40
And when we solve this, we will get the probability of a intersection b as 0 .09...