document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1136068>Question 1136068</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 9 sweets in a box. <BR>\n" );
document.write( "There are \"n\" jelly beans and the rest are cola bottles. <BR>\n" );
document.write( "Colin takes 2 sweets out of the box at random. <BR>\n" );
document.write( "Write an expression for the probability of getting 2 jelly beans.\r<BR>\n" );
document.write( "\n" );
document.write( "Could you please help me with this question because I have never learnt this before in school and it is on my homework so please can someone help<BR>\n" );
document.write( "I have no clue where to start </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #753828 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52794)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=753828\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The answer is in TWO LINES:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "    if n < 2 then the probability under the question is 0 (zero, ZERO);\r\n" );
document.write( "\r\n" );
document.write( "    otherwise (i.e. if n >= 2) the probability is  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%2F9%29%2A%28%28n-1%29%2F8%29 ALIGN=MIDDLE  ALT=\"%28n%2F9%29%2A%28%28n-1%29%2F8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%2A%28n-1%29%29%2F72 ALIGN=MIDDLE  ALT=\"%28n%2A%28n-1%29%29%2F72\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r\n" );
document.write( "</PRE>\r<BR>\n" );
document.write( "\n" );
document.write( "First line answer/option is clear, and I am sure, it does not require further explanations.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Second line answer/option is based on the fact, that at the first taking the probability to get a jelly bean is n of 9 items, \r<BR>\n" );
document.write( "\n" );
document.write( "while the probability to get a jelly bean at the second taking is (n-1) of remaining 8 items.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The probabilities at the first and the second taking are INDEPENDENT EVENTS, so we multiply the probabilities of each event.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Congratulations: You obtained the full and complete solution with explanations.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Happy learning !\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );