document.write( "Question 992094: A family has three children. Every child was born to be a boy or girl with 50% chance. The probability of this family having two boys is: \n" ); document.write( "

Algebra.Com's Answer #611715 by solver91311(24713) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "The sample space is:
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document.write( "    B  B  B   **\r\n" );
document.write( "    B  B  G   *\r\n" );
document.write( "    B  G  B   *\r\n" );
document.write( "    B  G  G\r\n" );
document.write( "    G  B  B   *\r\n" );
document.write( "    G  B  G\r\n" );
document.write( "    G  G  B\r\n" );
document.write( "    G  G  G\r\n" );
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\n" ); document.write( "\n" ); document.write( "There are eight possibilities. Three of the possibilities have two boys (*), and one has three boys (**).\r
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\n" ); document.write( "\n" ); document.write( "So the probability of EXACTLY two boys is 3/8. The probability of AT LEAST two boys is 1/2. What the question means by \"two boys\" is a matter of interpretation. You choose which is the correct way to look at it. The sentence as written is ambiguous and could mean either exactly or at least.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it\r
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