Discrete Probability

Suppose three fair coins are flipped. Find the probability for each of the following events. 1. Exactly two coins are tails. 2. At most two coins are tails.

Dice Probability. This solution shows an intuitive method for finding the probability of an event when rolling a pair of dice.

Suppose a pair of dice are flipped. Find the probability for each of the following events: 1. The sum of the dots is even. 2. The sum of the dots is at least 5.

Discrete Probability 12b

A team has probability 2/3 of winning whenever it plays. Find the probability that the team will win at most 4 out of 5 games.

Discrete Probability 13b

A baseball player's batting average is .250. Find the probability that he will get hits at least one hit in 4 times at bat.

Algebraic Properties 8b

Given the algebra , where f and g are unary operations and a is a constant of S, suppose that f(f(x)) = g(x) and g(g(x)) = x for all x ε S. Show that f(f(f(f(x)))) = x for all x ε S.