document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=266350>Question 266350</A>: <I><SPAN STYLE=\"word-break: break-all;\">  A couple has three children. Find each probability\r<BR>\n" );
document.write( "\n" );
document.write( "    A. All boys<BR>\n" );
document.write( "    B. All girls or all boys<BR>\n" );
document.write( "    C. Exactly two boys or two girls<BR>\n" );
document.write( "    D. At least one child of each gender </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #195817 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=195817\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A couple has three children. Find each probability <BR>\n" );
document.write( "A. P(All boys) = (1/2)^3 = 1/8<BR>\n" );
document.write( "-----------------------------------------------<BR>\n" );
document.write( "B. P(All girls or all boys) = 1/8 + 1/8 = 1/4<BR>\n" );
document.write( "-----------------------------------------------<BR>\n" );
document.write( "C. P(Exactly two boys or two girls) = 2*3C2(1/2)^2*(1/2) = 2*3*(1/8) = 3/4<BR>\n" );
document.write( "---------------------------------------<BR>\n" );
document.write( "D. P(At least one child of each gender) = 1 -P(all girls or all boys)<BR>\n" );
document.write( "= 1 - 1/4 = 3/4<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );