document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=103841>Question 103841</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Here is the titanic data we are working with...\r<BR>\n" );
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document.write( "        died      survived       total<BR>\n" );
document.write( "female   126        344           470<BR>\n" );
document.write( "male      1364       366          1730<BR>\n" );
document.write( "total     1490       710          2200\r<BR>\n" );
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document.write( "We are asked to show why the general addition rule is true and the hint was to use Venn Diagrams.<BR>\n" );
document.write( "I have done P(A or B) = p(A) + p(B) - P (A and B)<BR>\n" );
document.write( ".21+.73-.32=.62 but I don't understand \"how to show that the General Addition Rule is True\"?\r<BR>\n" );
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document.write( "Thanks for explaning this to me.\r<BR>\n" );
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document.write( "Jessica </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #75509 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=75509\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What are you taking as \"A\" and what are you taking as \"B\"<BR>\n" );
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document.write( "The general addition rule is as you have stated it.<BR>\n" );
document.write( "So you would have to choose A and B that have an <BR>\n" );
document.write( "intersection, like A=survived and B=male<BR>\n" );
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document.write( "That way you could demonstrate the general addition rule.<BR>\n" );
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document.write( "Hope that helps<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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