Q:

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%. What is the probability that Erin will have a heart attack and the test predicts it?

Accepted Solution

A:
Answer:the probability that Erin won't have a heart attack and the test predicts that she will is 0.4653 (aka 46.53%)Step-by-step explanation:For this conditional probability problem, you will need to use Bayes theorem.  When you put the values in (like below) you get 0.4653.