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 not have a heart attack? A.) 0.099
B.) 0.201
C.) 0.231
D.) 0.469
