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15.8 Probability Day 4

15.8 Probability Day 4. A box contains 4 white marbles and 6 green marbles. Three marbles are selected without replacement. What is the probability that the following occurs? 1.) All white or all green Total = 10. W. W. W. G. G. G. or.

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15.8 Probability Day 4

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  1. 15.8 Probability Day 4

  2. A box contains 4 white marbles and 6 green marbles. Three marbles are selected without replacement. What is the probability that the following occurs? 1.) All white or all green Total = 10 W W W G G G or

  3. A box contains 4 white marbles and 6 green marbles. Three marbles are selected without replacement. What is the probability that the following occurs? TOTAL = 10 2.) exactly two white W W G W G W G W W or or Or 3 Ways!! (Same Probability)

  4. A box contains 4 white marbles and 6 green marbles. Three marbles are selected without replacement. What is the probability that the following occurs? TOTAL = 10 3.) at least two white at least  2 or 3 From #2: P(exactly 2) = OR 3 Whites: W W W

  5. A box contains 4 white marbles and 6 green marbles. Three marbles are selected without replacement. What is the probability that the following occurs? TOTAL = 10 4.) exactly 2 white or 2 green From #2: P(exactly 2 W) = OR 2 Green: G G W 3 ways!! GWG or WGG

  6. Two cards are drawn from a standard deck of 52 cards. What is the probability that the following occurs? 5.) Two hearts, without replacement # of s in deck? 13

  7. Two cards are drawn from a standard deck of 52 cards. What is the probability that the following occurs? 6.) Two hearts, with replacement # of s in deck? 13

  8. Two cards are drawn from a standard deck of 52 cards. What is the probability that the following occurs? 7.) Two red cards or two spades, without replacement # of red cards in deck? # of s in deck? 26 13 R R   or

  9. Two cards are drawn from a standard deck of 52 cards. What is the probability that the following occurs? 8.) Two red cards or two kings, without replacement # of red cards in deck? # of Ks in deck? 26 4 R R K K or BUT Kings could be red, so subtract out P(2 red Ks) =

  10. Three dice are tossed. What is the probability that the following occurs? 9.) Three 3s 10.) No 3s

  11. Three dice are tossed. What is the probability that the following occurs? 11.) Exactly two 3s 12.) at least two 3s There are 3 arrangements!  two or three From #11: From # 9:

  12. Homework #8 12-6 Practice WS CST Quiz now so put calculators away!

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