document.write( "Question 1088453: Out of 800 families with 4 children each, about how many of these families would have at least one boy? \n" ); document.write( "

Algebra.Com's Answer #702743 by mathmate(429) $\"\"$ $\"About$

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Question:
\n" ); document.write( "Out of 800 families with 4 children each, about how many of these families would have at least one boy?
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\n" ); document.write( "Solution:
\n" ); document.write( "The probability of a 4-child family having at least one boy is equal to
\n" ); document.write( "P(n>=1)=1-P(n=0)=1-(1/2)^4=15/16.
\n" ); document.write( "Out of 800 families, the most likely number is 800*15/16=750 families with at least one boy. \n" ); document.write( "

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