document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=674964>Question 674964</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A multiple choice quiz has 5 questions, each with 5 answers. If you guess on all 5 questions what is the probability that you get at least one right? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #419538 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=419538\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A multiple choice quiz has 5 questions, each with 5 answers. If you guess on all 5 questions what is the probability that you get at least one right?<BR>\n" );
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document.write( "Binomial Problem n = 5 and p(correct) = 1/5 ; p(wrong) = 4/5<BR>\n" );
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document.write( "P(1 <= x <= 5) = 1 - P(x = 0)<BR>\n" );
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document.write( "= 1 - (4/5)^5 <BR>\n" );
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document.write( "= 0.6723<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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