document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=414344>Question 414344</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student takes a 10-question multiple choice exam and guesses on each question. (This means that the probability of success on any one question is the same.) Each question has 5 choices, only one of which is correct. Find the probability that the student fails the exam, i.e. scores <60%. Note this is a binomial experiment. \r<BR>\n" );
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document.write( "Any help would be appreciated. Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #290631 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=290631\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student takes a 10-question multiple choice exam and guesses on each question. (This means that the probability of success on any one question is the same.) Each question has 5 choices, only one of which is correct. Find the probability that the student fails the exam, i.e. scores <60%. Note this is a binomial experiment. <BR>\n" );
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document.write( "Binomial Problem with n = 10 and p = 1/5<BR>\n" );
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document.write( "Failing means the student get 0 to 5 questions correct.<BR>\n" );
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document.write( "P(0<= x <=5) = binomcdf(10,0.2,5) = 0.9936<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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