00:01
For this question, there are classes, a, b, c, and d.
00:08
And the relative frequency is given here, relative frequency.
00:15
So the relative frequency for a, that is 0 .24, and for b, that is 0 .06.
00:23
And for this one, 0 .40.
00:25
So what we have to do in part a, we have to find the relative frequency for d.
00:32
Let's say this has the relative frequency x here.
00:36
So if you just add up all the relative frequencies, we have to get the number one here.
00:41
So that is 0 .24 plus 0 .06 plus 0 .40 plus x.
00:48
That should be 1.
00:49
So if i just add these numbers, we've got 0 .70 plus x, which is 1.
00:55
So the x is 1 minus 0 .70, which is 0 .3.
00:59
So the x, the value of the x, which is 0 .3 here.
01:05
And in part b, what we have defined, the total sample.
01:09
So the n, let's say this is the sample size, which is 200...