~/math / Bayes
Which urn?
easyUrn A has 3 red and 1 blue ball; urn B has 1 red and 3 blue. You pick an urn at random and draw a red ball. What is the probability it came from urn A?
~/math / Bayes
Urn A has 3 red and 1 blue ball; urn B has 1 red and 3 blue. You pick an urn at random and draw a red ball. What is the probability it came from urn A?