document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1054110>Question 1054110</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rapid test for the presence in the blood of antibodies to HIV, the virus that causes AIDS, gives a positive result with probability about 0.006 when a person who is free of HIV antibodies is tested. A clinic tests 980 people who are all free of HIV antibodies.<BR>\n" );
document.write( "a)  What is the mean number of positive tests? (Give answer to 2 decimal places.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #669395 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=669395\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> gives a positive result with probability about 0.006 <BR>\n" );
document.write( "when a person who is free of HIV antibodies is tested.<BR>\n" );
document.write( "980(.006) = 5.88 = 6 is the mean number of positive tests </SPAN>\n" );
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