Using Probability

  1. You throw two dice (6-sixed number cubes), what is the probability of getting two 5s?
  2. You throw two dice (6-sixed number cubes), what is the probability of getting one 6 and one 1?
  3. You throw two dice (6-sixed number cubes), what is the probability of your two throws adding up to 12?
  4. You reach into your sock drawer, which contains 5 black socks, 4 white socks, and 3 blue socks.  If you pull out two socks, what is the probabilty that you get a pair of blue socks?
  5. If you reach into the same (full) sock drawer, what are the odds of getting a pair of white socks?
  6. If you reach into the same (full) sock drawer, what are the olds that you pull any pair of socks?
  7. You want to do a magic trick, but you're not very good at it. You want your audience member to pull a Queen of hearts out of a standard deck (52 cards).  If the audience member pulls 5 cards, how would you find the probability that she will pull a Queen of hearts (assuming there is no magic at work?). (Don't do the problem, just write the problem you'd want to do!)
  8. Using a deck of cards, what is the probability that you pull any queen?
  9. If you pull two cards out of a deck of cards, what are the odds that you pull any queen and then any ace?
  10. If a student's probability of randomly being chosen "Star of the Week" is 1/11, how many students could be in the class?  What is another amount of students that might be in the class?

Answer Key: