1. You need to know this stuff!
Review of Probability
You need to know this stuff!

2. A music collection includes 10 Rock CDs, 8 country CDs, 5 classical CDs, and 7 hip hop CDs. What is the probability that a CD randomly selected from the collection is a classical CD?
The easy stuff…

3. A music collection includes 10 Rock CDs, 8 country CDs, 5 classical CDs, and 7 hip hop CDs. What is the probability that a CD randomly selected from the collection is a classical CD or a hip hop CD?
The “or” stuff…

4. What is the probability of rolling either an even number or a multiple of 3 when rolling a standard number cube?
The “overlap” stuff…

5. A music collection includes 10 Rock CDs, 8 country CDs, 5 classical CDs, and 7 hip hop CDs. What is the probability that two CDs randomly selected from the collection are a classical CD AND a hip hop CD?
The “and” stuff…

6. Probability Distribution
Complete the probability distribution for the chart below.
Type of Music
Frequency
Probability
Rock 10
Hip Hop 7
Country 8
Classical 5
Alternative 6
Other 4
Probability Distribution

7. Two-Way Tables and Conditional Probability
Supports Issue
Does Not Support the Issue
Democrat 24 36
Republican 27 33
P(democrat and supports the issue) =
P(democrat | supports the issue) =
Two-Way Tables and Conditional Probability

8. Shots Only
Shots and Check-up
Dogs
0.31
0.23
Cats
0.26
0.20
What is the probability that an animal chosen at random is a dog, given that the treatment was shots only?
𝑃 𝐵 A = 𝑃(𝐴 𝑎𝑛𝑑 𝐵) 𝑃(𝐴)