The results of a medical test show that of 66 people selected at random who were given the test, 3 tested positive and 63 tested negative. Determine the odds in favor of a person selected at random testing positive on the test.

statistics - drwls, Thursday, February 24, 2011 at 6:53am

Probability 3/66 = 1/22
Odds (of positive test): 21:1