document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=303380>Question 303380</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A true-false test has ten questions. A student guesses all the answers. Find the probability of getting at least eight questions correct. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #217531 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=217531\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A true-false test has ten questions. A student guesses all the answers. Find the probability of getting at least eight questions correct.<BR>\n" );
document.write( "------------------------------<BR>\n" );
document.write( "Binomial Problem:<BR>\n" );
document.write( "n = 10 ; p = 1/2 ; 8<= x <=10<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "P(8<= x <=10) = 1 - binomcdf(10,1/2,7) = 0.0547<BR>\n" );
document.write( "===================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );