Answer:
SAS
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
Add them and then divide by the number of numbers given
Answer:
So, we conclude that the best estimate for the difference in the proportion of smokers is 4.4%.
Step-by-step explanation:
We know that 27 of the 193 males in the sample smoke while 16 of the 169 females in the sample smoke.
We have the following proportion:

So we get that 13.9% of men smoke.
We have the following proportion:

So we get that 9.5% of women smoke.
We get: 13.9%-9.5%=4.4%.
So, we conclude that the best estimate for the difference in the proportion of smokers is 4.4%.
You have 40/16
simplified by 8 and you have 5:2
so the answer is d. 5:2