document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=195853>Question 195853</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ok scores on an IQ test are normally distributed.  The mean is 100 adn the standard deviation is 15. If 6000 people took the test, how many of them scored between 85 and 180? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146997 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=146997\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> scores on an IQ test are normally distributed.  The mean is 100 adn the standard deviation is 15. If 6000 people took the test, how many of them scored between 85 and 180?<BR>\n" );
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document.write( "Find the percentage of normaly distributed population, with mean<BR>\n" );
document.write( "100 and sd = 15, with scores between 85 and 180<BR>\n" );
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document.write( "normalcdf(85,180,100,15) = 0.8413<BR>\n" );
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document.write( "Find that percent of 6000<BR>\n" );
document.write( "x = 0.8413*6000 = 5048<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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