document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=841689>Question 841689</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A statistics textbook chapter contains 66 exercises, 12 of which are essay questions. A student is assigned 16 problems. What is the probability that at least one is essay?<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 #507122 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=507122\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A statistics textbook chapter contains 66 exercises, 12 of which are essay questions. A student is assigned 16 problems. What is the probability that at least one is essay?<BR>\n" );
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document.write( "Binomial Problem with n = 16 and p(essay) = 12/66 = 2/11<BR>\n" );
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document.write( "P(at least one) = 1 - P(none are essay)<BR>\n" );
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document.write( "= 1 - (9/11)^16<BR>\n" );
document.write( "= 1 - 0.0403<BR>\n" );
document.write( "= 0.9597<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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