Question

Hi I’d like to get a step by step explanation of this problem

Answer 1

A) To answer this question, we need the total number of males and females that smoke, which is 40+20=60. This means that 60 of 200 smoke. So to calculate the probability,

`(60)/(200)\\ =(3)/(10)\\` OR 0.3

B)To answer this question, we will need to find out the number of females that were surveyed, which is 20+60=80. Now that we know that 60 out of 80 do not smoke, we can find out that the probability of selecting a female that does not smoke is

`(60)/(80)=(3)/(4) OR 0.75\\` 0.75

C)Same as the previous questions, find out the total males surveyed(40+80=120), and find the probability,

`(40)/(120)=1/3` OR 0.333

HOPE THIS HELPS!