00:01
Hi, i'm david and i'm here to help you answer your question.
00:03
In the question here we're given a table of the frequency from the type of the phone and the age group.
00:10
So let me go back to your question and you copy the portion of your question because i'm not allowed to copy the full question.
00:16
And i will put the table on the right here.
00:21
I'll move it here and make it smaller.
00:25
Now in the question a, i need to find the marginal distribution of the type of the phone.
00:31
The time of the phone it will be iphone android order.
00:36
So we have the marginal on the phone.
00:39
I will draw the table here.
00:42
So the phone it can be the iphone, the android and the order.
00:48
So we have this will be the phone and the probability of the phone.
00:55
Now we have the phone.
00:56
It can be the iphone.
00:59
It can be the android and it can be order.
01:06
And the probability here we will change it to want to compute in the percentage.
01:14
So we will turn the total of the iphone.
01:18
It will be the 467 we divide by the total to 024.
01:26
And it will compute which will get the 467 divided by the 2024.
01:32
In the percentage it will equal to the 23.
01:38
I will write to the one decimal places.
01:40
And then for the android we have the 4503 devalued 24 and it will equal to 204 equal to the 24 .9%.
01:56
This one will be the percent.
01:58
And the last one we just take the 1054 devalued the 2024 and then we get equal to 24 equal to the 52 .1%...