document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1145303>Question 1145303</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On a 5 question multiple-choice test, where each question has 3 answers, what would be the probability of getting at least one question wrong?\r<BR>\n" );
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document.write( "Give your answer as a fraction<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 #766517 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=766517\">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 3 answers, what would be the probability of getting at least one question wrong?\r<BR>\n" );
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document.write( "Give your answer as a fraction<BR>\n" );
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document.write( "Assuming the choices are random, ie, you don't know any of the answers and that all questions are answered:<BR>\n" );
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document.write( "The probability of no wrong answers is 1 in 3^5 = 1 in 243<BR>\n" );
document.write( "Any number of wrong answers = 1 - (1/243) = 242/243<BR>\n" );
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