Ginger and Micah are playing a game in which a coin is tossed twice. If heads comes up exactly once, Ginger wins. Otherwise, Micah wins. Find the sample space using a tree diagram. Then find the probability that Ginger wins.
A bag of animal crackers contains 6 monkeys, 5 giraffes, 6 elephants, and 3 tigers. Maria selects a cracker at random. Then Bryan selects a cracker at random. What is the probability that two tigers are chosen?