Question

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?

Answer 1

33%

Answer 2

there is now 33% option there is only

0.09

0.11
0.36

0.44

Answer 3

im at a brick wall...