document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=47558>Question 47558</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My daughter has three boats, four cars, and seven planes in a box. If three are chosen at random and not replaced, what is the probability that the first two are planes and the last one is a boat? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #31392 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=31392\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> My daughter has three boats, four cars, and seven planes in a box. If three are chosen at random and not replaced, what is the probability that the first two are planes and the last one is a boat?\r<BR>\n" );
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document.write( "Prob of getting the two planes: [7C2]/[14C2]= 7*6/14*13=6/26=3/13<BR>\n" );
document.write( "Prob of then getting the one boat: [3C1]/[12C1]=3/12=1/4\r<BR>\n" );
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document.write( "Prob(2 planes then 1 boat)= (3/13)*(1/4)= 3/52\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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