document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1162381>Question 1162381</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem :\r<BR>\n" );
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document.write( "A school's faith awareness group consists of 15 students and 3 teachers. If four members of the groups are randomly chosen to go to a retreat, determine the probability of selecting three students.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #786159 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13215)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=786159\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The denominator of the probability fraction is the number of ways of choosing 4 of the 18 people: 18C4.<br><BR>\n" );
document.write( "The numerator is the number of ways of choosing 3 of the 15 students AND 1 of the 3 teachers: (15C3) times (3C1).<br><BR>\n" );
document.write( "P(3 students and 1 teacher) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%2815C3%29%2A%283C1%29%29%2F%2818C4%29 ALIGN=MIDDLE  ALT=\"%28%2815C3%29%2A%283C1%29%29%2F%2818C4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Use a calculator if necessary....<br><BR>\n" );
document.write( "Leave the answer in decimal form only if an approximate answer is needed; leave it as a fraction if an exact answer is required.<br><BR>\n" );
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