document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1114903>Question 1114903</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There is a probability of a man to live 20 more years and his wife to live 20 more years.<BR>\n" );
document.write( "What is the probability of;<BR>\n" );
document.write( "1) both to live 20 more years?<BR>\n" );
document.write( "2) At least one person to live 20 more years?<BR>\n" );
document.write( "3) Only the man to live 20 more years?<BR>\n" );
document.write( "4) Only his wife to live 20 more years?<BR>\n" );
document.write( "5) man or the wife to live 20 more years?<BR>\n" );
document.write( "6) At least one person NOT to live 20 more years </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #729827 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</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=729827\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Your formulation of the given part is incorrect (which demonstrates that you do not understand what you are posting for . . . (unfortunately) )\r<BR>\n" );
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document.write( "The correct formulation of the given part is THIS:\r<BR>\n" );
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document.write( "    The probability of a man to live 20 more years is X and the probability of his wife to live 20 more years is Y.\r\n" );
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document.write( "The partial answers are:\r<BR>\n" );
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document.write( "1)  1 - (1-X)*(1-Y) = X + Y - XY.\r\n" );
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document.write( "2)  X*(1-Y) + Y*(1-X) = X + Y - 2*XY.\r\n" );
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document.write( "3)  X*(1-Y).\r\n" );
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document.write( "This problem was posted to the forum, probably, one year ago.\r<BR>\n" );
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document.write( "See the link\r<BR>\n" );
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document.write( "<A =  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1105633.html>https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1105633.html</A>\r<BR>\n" );
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document.write( "https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1105633.html\r<BR>\n" );
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document.write( "and my solution there.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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