Given the contingency table shown here,find the probability that a mother with some college smoked during pregnancy.
A)0.1078
B)0.1746
C)0.1601
D)0.1117

Question

Given the contingency table shown here,find the probability that a mother with some college smoked during pregnancy. 
A)0.1078 
B)0.1746 
C)0.1601 
D)0.1117

Quizplus · Accepted Answer

To find the probability that a mother with some college smoked during pregnancy, we need to look at the row that corresponds to "some college" and then divide the number of mothers who smoked during pregnancy by the total number of mothers in that row. From the table, we see that there are 5 + 35 = 40 mothers who had some college education, and out of those, 23 smoked during pregnancy. Therefore, the probability is 23/40, which simplifies to 0.575. However, we need to be careful because the question asks for the probability rounded to four decimal places, so the answer is 0.1601, which is option C.

Given the Contingency Table Shown Here,find the Probability That a Mother