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Wednesday, December 11, 2019

Quiz Tomorrow!

Tomorrow we will start class with a 12 minute quiz! Come ready!

  • What do I need to know for the quiz?
    • Create a probability model for a given context
    • Calculate expected value (show work)
    • Calculate standard deviation and/or variance (using calc--1 Var Stats)
    • Interpret expected value in a sentence
  • How can I prepare for the quiz?
      • Look back at Monday night's homework and/or key (linked below) to review "interpret expected value." 
      • Look back at our weekend book work!
        • p. 381-383: 3, 5, 7, 15, 21
      • Try more practice problems!
        • p. 382: #6b, 17, 19, 22
        • Do these on separate paper and grade yourself for +2 on your quiz
        • Here are the answers to 6b and 22
          • 6b.) Table: probability of 1 dart 0.1, prob for 2 darts = 0.09, prob. for 3 darts = 0.081, prob for 4 darts (and win) = 0.0729, prob for 4 darts (and lose) = 0.6561
          • 6b.) E(# darts) = 3.44
          • 6c.) E(wnnings) = $17.20
          • 22a.) Table: prob. of 0 males = 0.143, prob. of 1 male = 0.571, prob. of 2 males = 0.286
          • 22b.) E(# males) = 1.14 males
          • 22c.) st. dev(# males) = 0.64 males

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