document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=878455>Question 878455</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a test consists of 15 true/false questions. To pass the test a student must answer at least 12 correct. \r<BR>\n" );
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document.write( "A) If a student guesses on each question , what is the probability that the student will pass the test?<BR>\n" );
document.write( "B) Is it unusual for a student to pass by guessing? explain.\r<BR>\n" );
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document.write( "I am not sure if this needs to be graphed too? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #530126 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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/cgi-bin/show-face.mpl?user=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=530126\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(correct) = .5,  n = 15<BR>\n" );
document.write( "P(x &#8805; 12) = 1 - binomcdf(15, .5, 11) = 1 -.9824 =  .0176  0r 1.76% chance of passing<BR>\n" );
document.write( "B. YES, very unusual...very little chance statistically of doing so <BR>\n" );
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