00:01
We are given the probability of a equal to 0 .36 and the probability of b equal to 0 .46.
00:07
The first question, the part a of the question, is asking us to find the probability of a union b.
00:17
Since they are independent events, we just multiply them each other.
00:21
So 0 .36 times 0 .46.
00:25
And we get that this is equal to 0 .1656.
00:35
The problem is telling us to round to two decimal places, so this is equal to 0 .17.
00:44
Then question b is asking us for the probability of a and b, but we have this little c on the top which basically means the opposite the probability of a and b not happening.
01:04
So we first need to find what is the probability of a and b.
01:08
So to find let's scroll down we need more space.
01:12
The probability of a and b is found by adding the probability of a, 0 .36 minus the probability of b...