document.write( "Question 991112: Alice and Bill are planning to have three children. (Assume that it is equally likely for a boy or a girl to be born.) \r
\n" ); document.write( "\n" ); document.write( "What is the probability that at least one will be a girl?
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Algebra.Com's Answer #611026 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Let's do it backwards.
\n" ); document.write( "Assume none of them are girls, so they're all boys.
\n" ); document.write( "\"P%28BBB%29=%281%2F2%29%281%2F2%29%281%2F2%29=1%2F8\"
\n" ); document.write( "So then the complement, at least one girl, would be,
\n" ); document.write( "\"P=1-1%2F8\"
\n" ); document.write( "\"P=7%2F8\"
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