document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=168722>Question 168722</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A multiple choice quiz has 20 questions, each question has 4 answers only 1 is correct.  if you randomly select one answer for each question find the probability that you will have 12 or more right answers? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124414 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=124414\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A multiple choice quiz has 20 questions, each question has 4 answers only 1 is correct. if you randomly select one answer for each question find the probability that you will have 12 or more right answers?<BR>\n" );
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document.write( "P(correct) = 1/4<BR>\n" );
document.write( "P(wrong) = 3/4<BR>\n" );
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document.write( "n = 20, 12 <= x <= 20<BR>\n" );
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document.write( "P(30,1/4,12 <= x <= 20) = 1 - P(0 <= x <= 11) = 1 - 0.9990646 = 0.00093539...<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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