probability of something

Statistics
Tutor: None Selected Time limit: 1 Day

There are 12 people in a race.  How many ways can 1st, 2nd, and 3rd be obtained? 

  When purchasing a sound system you have 6 choices for speakers, another 8 choices for receiver, and 7 choices for a turntable.  How many different systems are available for you to construct? 

Jun 2nd, 2015

Please let me know if you need any clarification. I'm always happy to answer your questions.

1. P(3,12) = 12*11*10=1320

2.systems construct=(6*8*7)=336.....................................................................................................................

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 2nd, 2015

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