0:00
All right.
00:01
So in the following problem, we have been given actually two separate problems.
00:05
So in part four, we have been given that the 36 % of all infants were born through ivf.
00:13
So let's draw a tree diagram.
00:15
I think this will be easier to do in that case.
00:18
So you have infants, right? so they are born through ivf or they are born through non -iv.
00:26
Right? and this they're saying is a 36 % chance, right? and so this would be a 64 % chance.
00:36
And then they're saying of the people that do conceive with ivf, there are multiple births and there is a single birth, right? so where multiple kids are born and where only one kid is born.
00:52
So from the people who do ivf, there is a 25 % chance that you have multiple births.
00:58
And so a 75 % chance that you have a single birth.
01:02
So now i'm going to do the different parts of the problem.
01:05
In part a, we've been told to find the probability that a randomly selected infant was conceived through ivf and a part of multiple births.
01:13
So if we go along this line, infant, conceived through ivf is 0 .36 and multiple birth times 0 .25.
01:21
So this answer would be 0 .36 multiplied by 0 .25, which is 0 .09.
01:36
In part b, we've been asked to find the probability that a randomly selected infant conceived through ivf was not a part of multiple birth.
01:44
So it's conceived through ivf and so it's a single birth...