document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=347918>Question 347918</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A \"combination\" lock has a three-number \"combination\" where the numbers are<BR>\n" );
document.write( "chosen from the set {1, 2, 3, ... , 19, 20}.What is the probability that the \"combination\" has no repeated numbers?\r<BR>\n" );
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document.write( "A. .00015 B. .75 C. .15 D. .855 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #248770 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=248770\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hint: To find the probability, compute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%2820%2C3%29%2F%2820%5E3%29 ALIGN=MIDDLE  ALT=\"P%2820%2C3%29%2F%2820%5E3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Note: P(20,3) is also written as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%5EP%2A3 ALIGN=MIDDLE  ALT=\"20%5EP%2A3\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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