document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=970221>Question 970221</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Bozo rolls a pair of dice 20 times to see what the probability of rolling a pair of ones what is the probability of rolling a one out of 20? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #593114 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=593114\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ask what is the probability of not rolling a pair of 1s out of 20 rolls.\r<BR>\n" );
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document.write( "it is (35/36)^20, because they are independent events<BR>\n" );
document.write( "That is 0.569.<BR>\n" );
document.write( "But that is what you DON'T want.\r<BR>\n" );
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document.write( "What you do want is the complement of that or 1-0.569=0.431.\r<BR>\n" );
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