1 / 6

Two-Way Tables

Aim: Find the probability of an event given a condition. Two-Way Tables. Conditional Probability. Aim: Find the probability of an event given a condition. Try this ….

berne
Download Presentation

Two-Way Tables

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Aim: Find the probability of an event given a condition. Two-Way Tables Conditional Probability

  2. Aim: Find the probability of an event given a condition. Try this … Randy recorded information about whether he finished the hole in par or better and whether he needed 2 or more putts to finish the hole. 1. What is the probability that Randy scored par or better? What is the probability that Randy took 1 or fewer putts, or scored par or better? 2.

  3. Aim: Find the probability of an event given a condition. Given the Rays won what is the probability that a fan at that game received a free taco? Given that the Rays won, P( |win) = ≈ 26.5% P(taco|win) =

  4. Aim: Find the probability of an event given a condition. Given a free taco what is the probability that the Rays won the game? Given that free tacos were given away, P( |taco) = ≈ 86.7% P(win|taco) =

  5. Aim: Find the probability of an event given a condition. Independence If getting a taco and winning a game are independent, then getting a taco has nothing to do with winning (or loosing) a game. P(taco) =P(taco|win) = P(taco|loss) ≈ 18.5% P(taco) = P(taco|win) = ≈ 26.5% P(taco|loss) = ≈ 6.3% Getting a taco and winning a game are not independent events.

  6. Aim: Find the probability of an event given a condition. Practice Randy is back … What is the probability that Randy scored par or better, given that he took 1 or fewer putts? 1. What is the probability that Randy scored par or better, given that he took 2 or more putts? 2. Are the events ‘scored par or better’ and ‘took 1 or fewer putts’ independent? Explain. 3. No; the answers to #1 & #2 are not the same. Randy is more likely to score par or better if he took one or fewer putts.

More Related