Thomas wants to know what percentage of females buy his product. Thomas knows his customers are 50% male and 50% female, and that 30% of all his customers buy his product.
He collects data on people who have already bought his product, and asks their gender. He finds that 70% of the people who bought his product were female.
What method would you use to answer Thomas' original question?
A.Simpson's Paradox
B.The answer is one of the numbers given in the problem - no method needed
C.Bayes' Rule
D.Law of Total Probability