00:01
Hi, i'm david and i'm here to help me answer your question.
00:04
Now let me pick up your question here.
00:06
In this question here, we're given the table of the frequency for the random variable x.
00:12
And the first thing we need to do here, we construct the discrete probability distribution function from the random variable x.
00:21
To find the probability here, first of all, we need to find the total for the frequency.
00:29
And then we have the 70 plus 75 plus 30 plus 11 plus 6 plus 8 equal to 200 so that for the first b x when x is 0 equal to the 70 we devalued 200 then we get equal to the 0 1 35 now 75 given by 200 equal to the 0 % equal to 375 next one will be the 30 over 200 so we have 3 it will equal to the 0 .15 next one 11 divided by 200 equal to the 0 .055 there could be 8 over 200 so and given me 200 equal to the 0 .055 so we have the 6 different equal to the 0 .0 3.
01:45
And that's going to be the answer for the a.
01:48
And we need to draw the graph for the discrete probability distribution function.
01:52
So we can draw the graph here.
01:54
So let me draw it down here.
02:02
So there can be the probability table.
02:05
And this will be the value of the 0, 1, 2, 3, 4, and 5.
02:12
Now for the value of the 0 we get equal to 0 .35.
02:21
Suppose there will be somewhere here.
02:24
There will be the 0 .35.
02:27
And then at the 1 we have the 0 .375 will be a little bit up here.
02:34
So there will be the 0 .375.
02:38
And then at the value 2 will be 0 .15.
02:42
So it will be somewhere here...