document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=190152>Question 190152</A>: <I><SPAN STYLE=\"word-break: break-all;\"> you are taking a test that contains 5 multiple choice questions with 4 possible answers. you guess at all questions. find the probability that you guess exactly 2 questions correctly. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #142734 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=142734\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you are taking a test that contains 5 multiple choice questions with 4 possible answers. you guess at all questions. find the probability that you guess exactly 2 questions <BR>\n" );
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document.write( "Binomial problem with n=5, p = 1/4, x = 2<BR>\n" );
document.write( "P(x=2) = 5C2(1/4)^2(3/4)^3 = 10*(27/4^5) = 0.2637<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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