SOLUTION: The following table represents the hypertension and smoking habit of 180 individuals. Non Smokers Moderate Smokers Heavy Smokers Hypertension 25

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Question 1184234: The following table represents the hypertension and smoking habit of 180 individuals.
Non Smokers Moderate Smokers Heavy Smokers
Hypertension 25 35 32
No Hypertension 44 27 17
One persons is picked at random from this group, find the probability that
i) The person is a heavy smoker
ii) The person is a non smokers given that the person has no hypertension
iii) The person is a moderate smokers given that the person has hypertension
iv) If two persons are picked at random calculate the probability that both are non smokers
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Non Moderate Heavy Total
Hypertension 25 35 32. 92
No Hypertension 44 27 17 88
Total 69 62. 49. 180
i) this is 49/180, a column over the total
ii) this is 44/88.
iii)this is 35/92
prob first is ns is 69/190; then the second will be is 68/189.
That product is 0.1307