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Review of Probability

Dive into the world of probability with practical examples, from selecting music CDs to rolling dice. This review covers essential concepts such as the probabilities of selecting a classical CD from a diverse music collection, the probability of selecting either a classical or hip-hop CD, and the intersection of events when choosing two CDs. Additionally, we explore conditional probabilities, such as the chance of an animal being a dog given specific treatment conditions. Master these foundational ideas to improve your understanding of probability distributions and real-world applications.

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Review of Probability

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Presentation Transcript

  1. 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. Complete the probability distribution for the chart below. Probability Distribution

  7. P(democrat and supports the issue) = P(democrat | supports the issue) = Two-Way Tables and Conditional Probability

  8. What is the probability that an animal chosen at random is a dog, given that the treatment was shots only?

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