Question

Data on smoking cessation during pregnancy is shown below.

Years of Education
Smoking Status	0-11 yrs	%	12 yrs	%	13 - 15 yrs	%	16yrs	%	Total	%
Stopped	42	9.7	308	16.9	204	21.8	214	24.2	768	18.8
Did not	390	90.3	1515	83.1	732	78.2	670	75.8	3307	81.2
Total	432	100.0	1823	100	936	100.0	884	100	4075	100

Using the data in the table, we can calculate several probabilities. If A is the event of stopping smoking during pregnancy and B is the event of mothers having 16 years of education, answer the following:

a. What is the probability of selecting a mother who stopped smoking during pregnancy? [2 points]

​​​​​​​b. What is the probability of selecting a mother who has completed 16 years of school? [2 points]

c. What is the probability of selecting a mother who has both stopped smoking and completed 16 years of education? [2 points]

​​​​​​​​​​​​​​d. What is the conditional probability of stopping smoking during pregnancy given that the mother has completed 16 years of education? [2 points]

Answer 1