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Wednesday, December 7, 2016

Wednesday HW!

Tonight, please complete the following in your textbook (some expected value and variance practice)!

Page 381: 3 and 11, 5 and 13, 7, 15
  • I grouped "3 and 11" because 11 just asks you to find the standard deviation for the probability distribution--use your graphing calculator to do so!
    • (Same for 5 and 13)
  • In questions 3 and 5 you will have to do some work to find the probabilities to create the probability distribution--these will be more difficult than 7 and 15
    • This is like Tuesday's homework or today's classwork examples--you have to do some work to calculate probabilities, they are not directly given!
  • In question 7 you are given the probabilities you need; you have to read the context and create a probability distribution showing the outcomes and probabilities
  • In question 15 you are given the probability distribution--this is the easiest case scenario--and need to find expected value and standard deviation
  • For all questions SHOW ALL WORK FOR EXPECTED VALUE!
  • Use your graphing calculator to find the standard deviation and to check your answer for expected value!
    • For calculator help read the yellow box on the bottom of page 372
If you're feeling ambitious, here's tomorrow night's homework (more expected value stuff):

Page 382: 17, 19, 21


**Number 3 is based on a deck of cards--if you're not sure, here's the composition of a deck...**

Deck of Cards:
  • 52 total cards
  • 26 red cards
    • 13 hearts
    • 13 diamonds
  • 26 black cards
    • 13 clubs
    • 13 spades
  • There are 4 of each numbered card, one per suit
    • So there are 4 of each card 2-10
    • 4 Jacks
    • 4 Queens
    • 4 Kings
    • 4 Aces

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