document.write( "Question 868602: In a hall there are 6 boys and 7 girls. Four of them are randomly selected without replacement. What is the probability that at least one of them is a boy? \n" ); document.write( "

Algebra.Com's Answer #523672 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "13 children: 6B and 7G
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document.write( " 4 chosen
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document.write( "P(at least one is a boy) = 1 - P(all girls) = 1 - (7/13)^4 \n" );
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