document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1152772>Question 1152772</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An IQ  test has a mean of 100 and a standard deviation of 15. Assume a normal distribution.  Find the probability.  \r<BR>\n" );
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document.write( "1.  What is the probability that someone scores more than 125 points?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #774889 by </B><A HREF=/tutors/aboutme.mpl?userid=VFBundy><B>VFBundy(438)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=VFBundy><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=VFBundy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=774889\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z-score = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28IQ+-+mean%29%2FSD ALIGN=MIDDLE  ALT=\"%28IQ+-+mean%29%2FSD\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28125+-+100%29%2F15 ALIGN=MIDDLE  ALT=\"%28125+-+100%29%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 25/15 = 1.67<BR>\n" );
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document.write( "Look up 1.67 on a z-table.  The value is 0.9525.  This is the probability someone scores LESS than 125.  So, the probability someone scores MORE than 125 is the inverse, or <b>0.0475</b>. </SPAN>\n" );
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