00:01
Hey there, welcome to numerade.
00:03
We are given a table below here, summarizing the number of male and female students enrolled in a nursing program here.
00:13
So with this, we have to find the following probabilities.
00:18
We're asked to find a probability that a student is male or a nursing major.
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Probability of male or nursing.
00:33
So what we have here is the probability of male is basically 11113, 11113, minus, i'm sorry, plus the probability of being a nursing major, so 798 minus the where they intersect, which is 98.
01:04
And this is going to be divided by the grand total here let me see here so what we have for the actual values are going to be 1 ,112 so a little bit off because i'm basing this off a different example but let me see here 1 ,112 plus the where they intersect which is 99 check that.
01:47
So we have 1 ,112.
01:52
We have the total here, which is 799 minus the 99, divided by the total, which is 3 ,537.
02:12
All right, so let's see what we get in total here.
02:21
So we have 1 ,112, 112, 1 ,112, plus.
02:27
Basically 700 divided by 3 ,537, 3 ,537, giving us a probability here of around 0 .5123.
02:48
All right, so for part b here, so we have to find a probability that a student is female or not a nursing major.
03:02
It's probably put it as female or not nursing.
03:12
So what we have for part b here is basically we're going to calculate the female first.
03:21
So for the female, we're going to look at a total for the females in which we have 2 ,425, 2 ,425, plus for those who are not being a nursing major.
03:42
So not nursing will be around 2 ,738 minus where they intersect in which we have 1 ,725.
04:11
And this is then going to be divided by what we have here, 3 ,5377...