Relationships between smoking and hypertension


Consider the following relationships between smoking and hypertension for 180 individuals:


Non-smoker Smoker Total
Hypertension 21 66 87
No hypertension 48 45 93

69 111 180

IF one of these individuas is chosen at random ,

1- Find the probability that the person is experiencing hypertension GIVEN that the person is non- smoker?

2- Find the probability that the person is a smoker GIVEN that the person is  experiencing no hypertension?

3- Are smoker and hypertension independent? Justify your answer?

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Basic Statistics: Relationships between smoking and hypertension
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