document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=998964>Question 998964</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the area of the shaded region. The graph depicts IQ scores of adults, and those scores are<BR>\n" );
document.write( "normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test).<BR>\n" );
document.write( "Shows a graph with left side shaded and it stops at 110 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #616704 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=616704\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you need to calculate the z-value associated with IQ 110 and consult z-table values for the area (probability),<BR>\n" );
document.write( "z-value = (110 - mean) / std. dev.<BR>\n" );
document.write( "z-value = (110 - 100) / 15 = 0.666666667 approx 0.67<BR>\n" );
document.write( "Probability(Pr) ( X < 110 ) = 0.7486<BR>\n" );
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