document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150427>Question 150427</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321205650/algebrahomeworkh>A survey of mathematics with applications</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Can someone help me please?\r<BR>\n" );
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document.write( "9.  (6 pts) A couple plan to have exactly three children.  (Need line segments? Use these)<BR>\n" );
document.write( "(You may also hand draw your work and scan it in and save it in your .doc  file, <BR>\n" );
document.write( "as a .jpg or .pdf. Your choice.)<BR>\n" );
document.write( "(a)	Construct a tree diagram and list the sample space. <BR>\n" );
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document.write( "(b) Find the probability that the family has at least two girls.  \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110381 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=110381\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9.  (6 pts) A couple plan to have exactly three children.  (Need line segments? Use these)<BR>\n" );
document.write( "(You may also hand draw your work and scan it in and save it in your .doc  file, <BR>\n" );
document.write( "as a .jpg or .pdf. Your choice.)<BR>\n" );
document.write( "(a)	Construct a tree diagram and list the sample space.<BR>\n" );
document.write( "I'll let you draw the tree.<BR>\n" );
document.write( "In the 1st column put \"b\" and \"g\" for boy or girl<BR>\n" );
document.write( "In the 2nd column put \"b\" and \"g\" to the right of each of the column 1 entries<BR>\n" );
document.write( "In the 3rd column put \"b\" and \"g\" to the right of each of the column 2 entries <BR>\n" );
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document.write( "(b) Find the probability that the family has at least two girls.<BR>\n" );
document.write( "at least two girls: bgg, gbg, ggb, ggg<BR>\n" );
document.write( "P(at least two g's)= 4/8 = 1/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  \r<BR>\n" );
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