00:01
In this question, we're given a family has three children.
00:05
I'm going to let the event b be the child as a boy and event g be the child is a girl.
00:11
Now, multiple boths are excluded and assume all outcomes are equally likely.
00:16
Since all outcomes are equally likely, probability of having a boy, so that's event b, will be half, and probability of having a girl, that's event g, will be half.
00:30
Now we want to find probability of having two boys and then a girl in that order.
00:35
So we're looking at probability b, b, g.
00:41
So probability of having the first boy, that will be half.
00:48
Now, n in probability is thumps, all is plus.
00:55
So n, so that's a thumps.
00:57
Probability of having the second child as a boy, that will be also half.
01:04
So there's a thumbs.
01:06
Probability of having the third child as a girl will be also half.
01:11
So the answer is one out of eight...