Mathematics, 27.09.2019 20:30 iselloutt4fun
On discovering that her family had a 70% risk of heart attack, erin took a treadmill test to check her own potential of having a heart attack. the doctors told her that the reliability of the stress test is 67%. the test predicted that erin will not have a heart attack. what is the probability after the test was taken that she will have a heart attack?
a. 0.4051
b. 0.5010
c. 0.4653
d. 0.6632
Answers: 2
![P(\text{Correctly\ tested})=[P(\text{No\ heart\ attack})\times P(\text{Correctly\ tested})]+[P(\text{Heart\ attack})\times (\text{Incorrectly\ tested})]](/tpl/images/0268/9858/38e64.png)
![=[0.3\times 0.67]+[0.7\times 0.33]=0.432](/tpl/images/0268/9858/f5478.png)
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On discovering that her family had a 70% risk of heart attack, erin took a treadmill test to check h...
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