A test is administered to 500 athletes to determine if they are using performance enhancing drugs PEDs It is assumed that a positive test result indicates that the athlete is using PEDs and a negative test indicates that the athlete is not using PEDs However the test is not 100 accurate so some errors occur The following table shows the test results for this group of 500 athletes Positive Test Result Negative Test Result How many athletes are using PEDs 7 050 53 Athletes Using PEDs 46 4 2 Athletes Not Using PEDs 7 443