document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=314863>Question 314863</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Assume that adults have IQ scored that are normally distributed with a mean of 100 and a standard deviation of 15. Find the probabilty that a randomly selveted adult has an IQ between 81 and 119? I can't find thee formula on how to find the answer.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #225302 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=225302\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the z scores for both values.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%28x-mu%29%2Fsigma ALIGN=MIDDLE  ALT=\"z=%28x-mu%29%2Fsigma\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z1=%2881-100%29%2F15=-1.267 ALIGN=MIDDLE  ALT=\"z1=%2881-100%29%2F15=-1.267\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z2=%28119-100%29%2F15=1.267 ALIGN=MIDDLE  ALT=\"z2=%28119-100%29%2F15=1.267\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Find the normal probability value for both of these z scores.<BR>\n" );
document.write( "I used EXCEL's NORMDIST function(CUMULATIVE=TRUE).  <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P1=0.1026237 ALIGN=MIDDLE  ALT=\"P1=0.1026237\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P2=0.897363 ALIGN=MIDDLE  ALT=\"P2=0.897363\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The probability for the values to lie between 81 and 119 is the difference in probability values.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=0.897363-0.1026237 ALIGN=MIDDLE  ALT=\"P=0.897363-0.1026237\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=highlight_green%280.795%29 ALIGN=MIDDLE  ALT=\"P=highlight_green%280.795%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );