00:01
So this data is for a particular term of courses that spsc students take, and our areas of interest are whether they were online or whether they were evening classes.
00:16
And in part a, we want to determine the probability that a student is taking an online course.
00:33
Probability is favorable over possible, so there are a total.
00:37
Of 110 students taking online courses out of a possible 352.
00:46
And we can rewrite that as an equivalent simplified fraction of 516th and is a decimal of 0 .3125.
00:59
So you will have to speak with your professor or teacher whether they would like to see an answer written in simplified fraction form or a decimal and whether you were allowed to round that decimal or not.
01:14
Part b, you are trying to determine the probability that a student is not taking an evening course.
01:25
So we'll say no evening course.
01:33
So again, favorable over possible.
01:35
There are 282 not taking an evening course out of a possible 352.
01:45
As a more simplified equivalent fraction, we would say 141 over 176.
01:54
And as a decimal, that would equate to 0 .801136, 3636.
02:04
636.
02:05
Again, make sure you're inquiring with your professor or teacher as to whether you should round or provide a fraction.
02:16
In part c, we want the probability that the student is taking an online or an evening course.
02:24
So the probability of online or evening.
02:30
Now these two events are not mutually exclusive, so therefore we'll first find the probability of online, and probability of online...