In an experiment to study the relationship to studyhypertension and smoking habits, the following data are collectedfor 180 individuals:

Nonsmokers modsmokers Heavysmokers
H 21 36 30
NH 48 26 19

Where H and NH in a table stand for hypertension andnonhypertension, respectively. If one of these individuals is isselected at random, find the probability that the person

(a) experiencing hypertension, given that the person is a heavy smoker
(b) a nonsmoker given that the person is experiencing no hypertension.

a) 0.612, b) 0.52.

Step-by-step explanation:

Since we have given that

              Nonsmokers  mod smokers Heavy smokers  Total

H                   21              36                         30                 87

NH                48              26                         19                93

Total              69             62                          49               180

Here, H stands for Hypertension

NH stands for Non hypertension

(a) experiencing hypertension, given that the person is a heavy smoker

P(H|Heavy smoker) =

(b) a nonsmoker given that the person is experiencing no hypertension.

P(Non smoker | No Hypertension) =

Hence, a) 0.612, b) 0.52.

the answer is 62.8 cubic units