00:01
Hi, i'm david and i'm here to help you answer your question.
00:04
In the question here, we're given the table of the frequency for the smoking status and the age group.
00:09
So let me go back to your question and check 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
Now from the table here, we will need to answer the question.
00:25
So before that, i need to find the total for the column.
00:30
Now we will add up 174 plus 433 plus 484 plus 211 equals 21702 the second column 618 plus 1115 plus 1 445 plus 1607 equal to the 4 785 and also the total for the 8 group 174 plus 1607 equal to the 4 785 and also the total for the age group 618 equal to the 792, 433 plus 11115, equal to the 1548.
01:11
Here 484 plus 1445 equal to the 19, 29, 211, 211, 217 equals to the 1818, and we have the total for everything.
01:27
We get the 1 -302 plus 4785 equal to the 6087.
01:40
Now we are ready to answer the part a.
01:43
Once you find the probability that the selected adult is a smoker.
01:48
So smoker denoted by the s here...