document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1168482>Question 1168482</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Bad gums may mean a bad heart. Researchers discovered that 81% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums. Only 28% of healthy people have this disease. Suppose that in a certain community heart attacks are quite rare, occurring with only 14% probability.\r<BR>\n" );
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document.write( "A. If someone has periodontal disease, what is the probability that he or she will have a heart attack?\r<BR>\n" );
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document.write( "B. If 43% of the people in a community will have a heart attack, what is the probability that a person with periodontal disease will have a heart attack?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #793082 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=793082\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Bad gums may mean a bad heart. Researchers discovered that 81% of people who have suffered a heart attack had <BR>\n" );
document.write( "periodontal disease, an inflammation of the gums. Only 28% of healthy people have this disease. <BR>\n" );
document.write( "Suppose that in a certain community heart attacks are quite rare, occurring with only 14% probability.\r<BR>\n" );
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document.write( "A. If someone has periodontal disease, what is the probability that he or she will have a heart attack?\r<BR>\n" );
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document.write( "B. If 43% of the people in a community will have a heart attack, what is the probability that a person <BR>\n" );
document.write( "with periodontal disease will have a heart attack?<BR>\n" );
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document.write( "This passage from your post perplexes me\r<BR>\n" );
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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( "    \" . . . 28% of healthy people have this disease.\"\r\n" );
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document.write( "Is it possible to consider a person to be healthy if he (or she) suffers a disease ?\r<BR>\n" );
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document.write( "And what about the unhealthy people then ?\r<BR>\n" );
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