document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=402160>Question 402160</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a student randomly guesses at 20 multiple-choice questions, find the probability that the student gets exactly four correct.  Each question has four possible choices. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #284508 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=284508\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a student randomly guesses at 20 multiple-choice questions, find the probability that the student gets exactly four correct. Each question has four possible choices.<BR>\n" );
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document.write( "Binomial Problem with n = 20 and p = 1/4<BR>\n" );
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document.write( "P(x = 4) = 20C4(1/4)^4*(3/4)^16 = 0.1897<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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