document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=24754>Question 24754</A>: <I><SPAN STYLE=\"word-break: break-all;\"> zccording to the national center fo health statistics, each time a baby is born, the probability that it is a boy is always 51.3 % and a girl is 48.7% regardless of the sex of any previous births in the family. suppose a couple has four children..    What is the probability they are girls?? what is the probability there are one girl and three boys?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #20890 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=20890\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P(four girls)= 0.487^4=0.0562...<BR>\n" );
document.write( "P(one girl and 3 boys)= 4C1(0.487)(0.513)^3<BR>\n" );
document.write( "=4(0.487)(0.513)^3=0.26299......<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan  </SPAN>\n" );
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