document.write( "Question 959361: there are 3 friends in a class. The teacher calls 2 out of 21 kids at random. What is the probability tht 2 of the friends are called \n" ); document.write( "
Algebra.Com's Answer #586402 by stanbon(75887)\"\" \"About 
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there are 3 friends in a class. The teacher calls 2 out of 21 kids at random. What is the probability tht 2 of the friends are called
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\n" ); document.write( "# of ways to succeed:: 3C2 = 3
\n" ); document.write( "# of possible outcomes:: 21C2 = 210
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\n" ); document.write( "P(choose 2 friends) = 3/210 = 1/70
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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