February 22, 2017

Homework Help: Math

Posted by Jill on Tuesday, January 25, 2011 at 11:15am.

There are 7 rap songs, 7 rock songs and 5 classical songs to select from. Three songs are to be chosento play at random
-what is the probability that only classical songs are selected?
-what is the expected number of classical songs to be selected?

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