Question

The table below describes the smoking habits of a group of asthma sufferers. If one of the 1156 people is randomly selected, find the probability that the person is a
man or a heavy smoker. Round to three decimal places as needed
71
Occasional Regular Heavy
Smoker Smoker Smoker Total
50
601
39 555
9815788 1156
Men
Women
Total
49
Nonsmoker
431
382
813
86

Answer 1

Answer:

0.554

Step-by-step explanation:

In the figure attached, the table is shown

Total people: 1156

Nonsmoker men + occasional smoker men + regular smoker men + heavy smoker men + heavy smoker women = men + heavy smoker women = 601 + 39 = 640

Probability that the person is a  man or a heavy smoker = 640/1156 = 0.554

(Notice that if you directly add heavy smoker and total men you will count twice heavy smoker men)