Question 578138
a) Experiencing hypertension given that the person is a heavy smoker.
We already know that the person is a heavy smoker. We simply need to know if she/he is experiencing hypertension.
Number of heavy smokers having hypertension is 30
Number of all heavy smokers (including hypertension free) is 49
Answer = {{{(Heavy _smokers_ with_ hyper)/(All_ heavy_ smokers)}}}
       = {{{(30)/(49)}}}

b) A non smoker given that the person is experiencing no hypertension.
We already know that the person does not have hypertension. We only want to be certain if he/she is a non smoker.
Number of Non smokers without hypertension is 48
Number of people who do not have hypertension (whether they smoke or not)=93
Answer = {{{(Non_smokers_with_no_hypertension)/(everyone _with_ no _hypertension)}}}
       = {{{(48)/(93)}}}