document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=571950>Question 571950</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The senior class has been given a comprehensive examination to asses educational experience. The mean on the test was 75 and the standard deviation was 11. What percentage of the students had scores above 80? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #368262 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=368262\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The senior class has been given a comprehensive examination to asses educational experience. The mean on the test was 75 and the standard deviation was 11. What percentage of the students had scores above 80?<BR>\n" );
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document.write( "z(80) =(80-75)/11 = 0.4545<BR>\n" );
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document.write( "P(x > 80) = P(z > 0.4545) = normalcdf(0.4545,100) = 0.3247<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================= </SPAN>\n" );
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