~/math / Bayes
Which coin?
mediumA bag has two fair coins and one coin with heads on both sides. You pick a coin at random, flip it twice, and see two heads. What is the probability you picked the two-headed coin?
~/math / Bayes
A bag has two fair coins and one coin with heads on both sides. You pick a coin at random, flip it twice, and see two heads. What is the probability you picked the two-headed coin?