document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=712967>Question 712967</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On a 5 question multiple-choice test, where each question has 5 answers, what would be the probability of getting at least one question wrong?\r<BR>\n" );
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document.write( "Give answer as a fraction </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #438239 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=438239\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> On a 5 question multiple-choice test, where each question has 5 answers, what would be the probability of getting at least one question wrong? <BR>\n" );
document.write( "Give answer as a fraction<BR>\n" );
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document.write( "Binomial Problem with n = 5 ; p(correct) = 1/5 ; p(wrong) = 4/5<BR>\n" );
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document.write( "P(at least one wrong) = 1 - p(all correct) = 1 - (1/5)^5 = 0.99968<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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