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Thursday, November 10, 2016

3 Day Weekend = Intro to Probability!

 Yay! Three day weekend! Rest up, relax, and have some fun with your friends and family! Come back recharged and ready to do lots of math, as we'll start our probability unit (chapter 14) on Monday!

This weekend, please complete the "Probability: The Basics" worksheet provided in class (or below). This homework assignment is your introduction to probability--the more work you put into this and the more learning you do independently, the easier your life will be in class! A few notes for your homework:

  • All final answers should be written as decimals
  • You must SHOW WORK for each question--the work may be as simple as a fraction, or adding/multiplying some fractions--but I need to see some work and then a circled decimal answer
  • When you multiply or add fractions with your calculator (to get your decimal "final answer") be sure to put your fractions in parentheses! (Ex: (1/12) + (1/12))
  • Feel free to read chapter 14 in your textbook to get a head start on this unit and for some examples!
  • You can also watch some AP Stats Guy probability videos!
  • Here are some examples you can use to help think about your own homework: this gives you some ideas for how to approach these problems, and also shows the type of work I need:
  • And here are the homework questions in case you lost yours or were out:
  • And finally, here are the homework answers so you can check yours!
    1. 0.333
    2. 0.167
    3. 0.167
    4. 0.50
    5. 0.833
    6. 0.00694
    7. 0.6944
    8. 0.0278
    9. 0.4019
    10. 0.0402
    11. Think: are the spins of the wheel independent? Does the outcome of one spin affect the outcome of the next spin? If so, the spins are related and are not independent; if the outcome of one spin does not affect the outcome of the next, then the spins are independent.
    12. Think: They got 64% by adding the two percentages (46% + 18%); does this seem reasonable?
    13. a. 1     b. P(both righty) = 0.7396, P(both lefty) = 0.0196     c. 0.103544      d. 0.310632
    14. ai. 0.51    aii. 0.55   bi. 0.041   bii. 0.84965  biii. 0.9744
And finally, there's this:






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