1) If one person is randomly selected, find the probability that he or she died of Cancer?

Question

SMOKER Cancer-135 Heart Disease-310 Other-205 Total-650

Nonsmoker Cancer-55 Heart Disease-155 Other-140 Total-350

Total Cancer-190 Heart Disease-465 Other-345 Total-1000

1) If one person is randomly selected, find the probability that he or she died of Cancer.

2) If one person is randomly selected, find the probability that they died of cancer given that they were a nonsmoker.

Answer 1

Favorite Answer

1. 190/1000

2. 55/350

Answer 2

the person randomly selected has a 19 out of 100 chance of dying from cancer.

the randomly selected nonsmoker has an 11 out 70 chance of dying from cancer.

(btw smokers have a greater chance of dying because they are more prone to get lung cancer and throat cancer because they smoke.)