document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1197381>Question 1197381</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A true-false test consists of 50 questions. How many does a student have to get right to convince you that he is not merely guessing?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #830624 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=830624\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=E%28X%29+=+np+=+50%280+.5%29+=+25 ALIGN=MIDDLE  ALT=\"E%28X%29+=+np+=+50%280+.5%29+=+25\"   DISABLED_style= \"max-width:90%; height:auto;\" > correct answers. \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SD%28X%29+=sqrt%28+npq%29+=sqrt%28+50%2A+0.5+%2A0.5%29=+3.54+ ALIGN=MIDDLE  ALT=\"SD%28X%29+=sqrt%28+npq%29+=sqrt%28+50%2A+0.5+%2A0.5%29=+3.54+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  correct answers. \r<BR>\n" );
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document.write( "Answers may vary. \r<BR>\n" );
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document.write( "In order be convincing, the student would have to answer at least <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36 ALIGN=MIDDLE  ALT=\"36\"   DISABLED_style= \"max-width:90%; height:auto;\" > out of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50 ALIGN=MIDDLE  ALT=\"50\"   DISABLED_style= \"max-width:90%; height:auto;\" >questions correctly, since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36 ALIGN=MIDDLE  ALT=\"36\"   DISABLED_style= \"max-width:90%; height:auto;\" > is approximately three standard deviations above the mean. \r<BR>\n" );
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document.write( "Answering fewer than <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36 ALIGN=MIDDLE  ALT=\"36\"   DISABLED_style= \"max-width:90%; height:auto;\" > questions correctly could happen too often, simply <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=due ALIGN=MIDDLE  ALT=\"due\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+to ALIGN=MIDDLE  ALT=\"+to\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+chance ALIGN=MIDDLE  ALT=\"+chance\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  </SPAN>\n" );
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