Tom has a bag of marbles: 4 red and 5
blue. He reaches in the bag and pulls out a
red. He DOES NOT replace the marble. He
reaches in again and pulls out another red
marble. What is the COMPOUND
probability that Tom will pull out a red and
a red? (Show your work calculating the
probability)

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.