document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=552197>Question 552197</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 5 multiple choice questions on an exam. Each with four possible answers. Find the following probabilities. \r<BR>\n" );
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document.write( "A exactly 3 are correct<BR>\n" );
document.write( "B at least 2 are correct<BR>\n" );
document.write( "C all five are correct <BR>\n" );
document.write( "D no more than 4 are correct  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #360273 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=360273\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are 5 multiple choice questions on an exam. Each with four possible answers. Find the following probabilities. <BR>\n" );
document.write( "Binomial Problem with n = 5 and p(correct) = 1/4<BR>\n" );
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document.write( "A exactly 3 are correct<BR>\n" );
document.write( "P(x = 3) = 5C3*(1/4)^3*(3/4)^2 = 0.0879 <BR>\n" );
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document.write( "B at least 2 are correct<BR>\n" );
document.write( "P(2 <= x <= 5) = 1 - binomcdf(5,1/4,1) = 0.3672 <BR>\n" );
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document.write( "C all five are correct<BR>\n" );
document.write( "P(x = 5) = (1/4)^5 = 0.0009766<BR>\n" );
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document.write( "D no more than 4 are correct <BR>\n" );
document.write( "P(0 <= x <= 4) = binomcdf(5,1/4,4) = 0.9990\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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