1. Review
Quiz Tomorrow

2. Formulas AND OR Independent: P(A and B) = P(A) x P(B) Exclusive:
P(A or B) = P(A) + P(B)
Dependent:
P(A and B) = P(A) x P(B given A)
Inclusive:
P(A or B) = P(A) +P(B) – P(A and B)

3. Indpendent/dependent and what’s the probability
Flipping a heads, flipping a tails, and then flipping a tails
A magic hat has 4 rabbits, 2 scarves, and 6 ping pong balls. What is the probability a magician pulls out a rabbit and then a ping pong ball (without replacement)

4. Mutually exclusive / inclusive
What is the probability I roll a 4 or a 5? What is the probability I roll a number greater than 3 or I roll a 5?

5. Word Problem
Of 1000 students interviewed, 300 had exercised over the weekend of the students who were interviewed played video games over the weekend of the people who exercised also played video games. What is the probability that someone from this interview played video games or exercised over the weekend.

6. Word Problem
4 friends head to the vending machine for a snack after school. The vending machine has 14 options for snacks. What is the probability that at least two friends had the same snack?

7. What is the probability that a first serve went in given that he lost?
What is the probability that roger got the first serve in and won?