CK-12-Basic Probability and Statistics Concepts - A Full Course

(Marvins-Underground-K-12) #1

2.5. Combinations http://www.ck12.org


b. If the members of the club decide to send 2 freshmen and 2 seniors, how many different groupings are
possible?


  1. Julia is going on vacation, and she wants to pack 5 t-shirts and 4 pairs of shorts in her suitcase. If Julia has
    22 t-shirts and 9 pairs of shorts from which to chose in her closet, in how many possible ways can she pack
    t-shirts and shorts for her vacation?

  2. Of Major League Baseball’s 16 National League teams and 14 American League teams, 4 teams from each
    league make the playoffs. How many possible groups of playoff teams are there in Major League Baseball?

  3. If Rick randomly chooses 3 months of the year to give up junk food, what is the probability that he gives up
    junk food during the first 3 months or the last 3 months of the year?

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