document.write( "Question 1167213: A couple wants to have three children Using the tree diagram to create a sample space then find the probability of having a two boys or two girls in a family. \n" ); document.write( "

Algebra.Com's Answer #791819 by ikleyn(52810) $\"\"$ $\"About$

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document.write( "The sample space is these 8 lines below.\r\n" );
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document.write( "1)    B B B \r\n" );
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document.write( "2)    B B G\r\n" );
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document.write( "3)    B G B\r\n" );
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document.write( "4)    B G G\r\n" );
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document.write( "5)    G B B \r\n" );
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document.write( "6)    G B G\r\n" );
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document.write( "7)    G G B\r\n" );
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document.write( "8)    G G G\r\n" );
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document.write( "Of these 8 lines,  lines  2), 3) and 5)  represent  \"two boys in a family\".\r\n" );
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document.write( "                   Lines  4), 6) and 7)  represent  \"two girls in a family\".\r\n" );
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document.write( "P(two boys in a family) = .\r\n" );
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document.write( "P(two girls in a family) = .\r\n" );
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