document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=322074>Question 322074</A>: <I><SPAN STYLE=\"word-break: break-all;\"> stephen is taking a twenty question multiple choice test.  each question has 5 choices, A B C D or E.  only one of the five is correct.  If Stephen guesses on every problem, what is the probability that he will get exactly 8 correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230551 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=230551\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> stephen is taking a twenty question multiple choice test. each question has 5 choices, A B C D or E. only one of the five is correct. If Stephen guesses on every problem, what is the probability that he will get exactly 8 correct?<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Binomial Problem with n = 20 and p = 1/5<BR>\n" );
document.write( "----<BR>\n" );
document.write( "P(x=8) = 20C8(1/5)^8*(4/5)^12 = 0.0222<BR>\n" );
document.write( "=====<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=====  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );