document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=896121>Question 896121</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Of 15 persons who have contracted a disease, 10 have completely recovered. Suppose that 5 persons are chosen at random from 15, what is the probability that none have completely recovered? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #543257 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=543257\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Of 15 persons who have contracted a disease, 10 have completely recovered. Suppose that 5 persons are chosen at random from 15, what is the probability that none have completely recovered?<BR>\n" );
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document.write( "P(recover) = 10/15 = 2/3<BR>\n" );
document.write( "P(not recover) = 1/3<BR>\n" );
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document.write( "P(none of 5 recovered) = (1/3)^5 = 0.0041<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan </SPAN>\n" );
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