document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=287950>Question 287950</A>: <I><SPAN STYLE=\"word-break: break-all;\">  A student is taking a true/false exam with 16 questions. If he guesses on each question, what is the probability he will get at least 14 questions correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #208721 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=208721\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student is taking a true/false exam with 16 questions. If he guesses on each question, what is the probability he will get at least 14 questions correct?<BR>\n" );
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document.write( "P(14<= x <=16) <BR>\n" );
document.write( "= 1 - 16C14(1/2)^14*(1/2)^2 <BR>\n" );
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document.write( "= 1 -  120(1/2)^16<BR>\n" );
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document.write( "= 1 - 0.001831<BR>\n" );
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document.write( "= 0.9982<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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