document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=910809>Question 910809</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLESE SOLVE USING PROBABILITY TREE IF YOU CAN.\r<BR>\n" );
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document.write( "LAST WEEK I FELT SYMPTOMS CONSISTENT WITH\"SCHARGEL\" SYNDROM. TODAY I BOUGHT A STANDARD SALIVA TEST FOR THIS CONDITION AND IT CAME UP NEGATIVE. HOWEVER, I'M STILL CONCERNED THAT I MIGHT HAVE THIS MEDICAL PROBLEM BECAUSE THE RESULT COULD HAVE BEEN A FALSE NEGATIVE. IF THE SENSITIVITY OF THE TEST IS PR(POSITIVE RESULT/HAVING THE DISEASE)=0.97, AND THE SPECIFICITY IS PR(NEGATIVE RESULT/NOT HAVING THE DISEASE)=0.95 AND THE PROPORTION OF PEOPLE IN THE POPULATION WITH \"SCHARGEL SYNDROM IS PR(HAVING DISEASE)=0.06; WHAT IS THE PROBABILTY THAT I ACTUALLY HAVE THE DISEASE? (I.E. CALCULATE PR(HAVING DISEASE/NEGATIVE RESULT)? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #552684 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=552684\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> THE SPECIFICITY IS PR(NEGATIVE RESULT/NOT HAVING THE DISEASE)=0.95 <BR>\n" );
document.write( "THE SPECIFICITY IS PR(NEGATIVE RESULT/HAVING THE DISEASE)=0.05<BR>\n" );
document.write( "this says (and please DO NOT use CAPS on this site) <BR>\n" );
document.write( "P(testing negative And having the disease) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.05%2A.06+=+.003 ALIGN=MIDDLE  ALT=\".05%2A.06+=+.003\"   DISABLED_style= \"max-width:90%; height:auto;\" > 0r .3% chance </SPAN>\n" );
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