document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=232446>Question 232446</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many throws of two dice are needed, on average, to roll a lucky seven? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #171793 by </B><A HREF=/tutors/aboutme.mpl?userid=vincysam><B>vincysam(2)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vincysam><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=171793\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  The total number of possible outcomes when two dice are thrown are 36<BR>\n" );
document.write( " Possible out comes are  one on first die and one on second die (1,1)<BR>\n" );
document.write( "                         one on first die and two on second die  (1,2)<BR>\n" );
document.write( "                          ..........................................<BR>\n" );
document.write( "                          .........................................<BR>\n" );
document.write( "                          .........................................<BR>\n" );
document.write( "                          six on first die and five on second die (6,5)<BR>\n" );
document.write( "                          six on first die and six on second die  (6,6)\r<BR>\n" );
document.write( "\n" );
document.write( "  Favorable chances to get seven is (1,6),(2,5),(3,4),(4,3),(5,2),(6,1)\r<BR>\n" );
document.write( "\n" );
document.write( "  Probability of getting seven = favorable chances to roll seven/total outcomes<BR>\n" );
document.write( "                               = 6/36<BR>\n" );
document.write( "                               = 1/6\r<BR>\n" );
document.write( "\n" );
document.write( " This means on average six throws need to roll lucky seven<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );