document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=251215>Question 251215</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A physician claims to have discovered a cure for a disease. Historically half of the patients with this disease have recovered without treatment. He treats 200 patients, 120 of whom recover. Waht is the probability that all 120 would have recovered without treatment? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #182933 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=182933\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A physician claims to have discovered a cure for a disease. Historically half of the patients with this disease have recovered without treatment. He treats 200 patients, 120 of whom recover. What is the probability that all 120 would have recovered without treatment?<BR>\n" );
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document.write( "Population proportion = 0.5<BR>\n" );
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document.write( "The problem is binomial with n= 200, p = 0.5, x = 120<BR>\n" );
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document.write( "P(x=120) = binompdf(200,0.5,120) = 0.001<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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