document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1101272>Question 1101272</A>: <I><SPAN STYLE=\"word-break: break-all;\"> As an incentive to do homework, Professor Rouse randomly draws three students' names, and they are expected to explain a homework problem of the day. On a particular day, 7 students have not done homework and 24 have. Find the following probabilities.\r<BR>\n" );
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document.write( "(a) The first two drawn have not done homework and the third has<BR>\n" );
document.write( "(b) All three drawn have not done homework.<BR>\n" );
document.write( "(c) All three drawn have done homework<BR>\n" );
document.write( "(d) At least one of the three drawn has done homework. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #715812 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=715812\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a.  (7/31)(6/30)(24/29)=0.0374<BR>\n" );
document.write( "b. (7/31)(6/30)(5/29)=0.0078<BR>\n" );
document.write( "c.(24/31)(23/30)(22/29)=0.4503<BR>\n" );
document.write( "d.  This is 1-c or 0.9922, because at least one of the three is 1-(p that none did) </SPAN>\n" );
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