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 #611714 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "The sample space of the orders of birth are\r\n" );
document.write( "\r\n" );
document.write( "{BBB,BBG,BGB,BGG,GBB,GBG,GGB,GGG}\r\n" );
document.write( "\r\n" );
document.write( "P(exactly 2 boys) = 3/8\r\n" );
document.write( "\r\n" );
document.write( "P(at least 2 boys) = 4/8 = 1/2\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );