There are 4 hamsters and 5 mice in a cage. If I pull out three rodents at random, what is the probability that I get more hamsters than mic
A fair pair of dice are rolled. What is the probability that the sum of the numbers rolled is less than 5?
An exam has 5 multiple choice questions with 2 possible answers each, and 5 true false questions. Assume each question on the test counts as10 points, and that each question has a unique answer. If a student quesses at random, what is the probability that he scores a 20 on the exam?