document.write( "Question 1042725: What is the probability that a family with 8 children has 8 girls? (Give your answer as a fraction.) \n" ); document.write( "
Algebra.Com's Answer #657752 by Edwin McCravy(20077)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "The 1st child will be a girl 1/2 of the time.\r\n" );
document.write( "The 2nd child will be a girl 1/2 of those times.\r\n" );
document.write( "The 3rd child will be a girl 1/2 of those times.\r\n" );
document.write( "The 4th child will be a girl 1/2 of those times.\r\n" );
document.write( "The 5th child will be a girl 1/2 of those times.\r\n" );
document.write( "The 6th child will be a girl 1/2 of those times.\r\n" );
document.write( "The 7th child will be a girl 1/2 of those times.\r\n" );
document.write( "The 8th child will be a girl 1/2 of those times.\r\n" );
document.write( "\r\n" );
document.write( "Probability: (1/2)^8 = 1/256.\r\n" );
document.write( "\r\n" );
document.write( "[But you must take this, as well as many problems\r\n" );
document.write( "found in mathematics courses, with a grain of salt \r\n" );
document.write( "in reality.  In this case, it is true that some men \r\n" );
document.write( "produce more female-sperm (sperm that would result \r\n" );
document.write( "in female offspring) than male.  Also, some women's \r\n" );
document.write( "eggs are predisposed to accepting only female sperm.  \r\n" );
document.write( "Male-sperm gets rejected.  So to compute the actual \r\n" );
document.write( "probability accurately for reality, we would have to\r\n" );
document.write( "know the probability of men and women being female-\r\n" );
document.write( "producers].\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );