document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=621465>Question 621465</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The area under a normal curve with mu = 15 and sigma = 2 is<BR>\n" );
document.write( "0<BR>\n" );
document.write( "1<BR>\n" );
document.write( "2<BR>\n" );
document.write( "none of these \r<BR>\n" );
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document.write( "If Mary gets a 90 on a physics test where the mean is 85 and the standard deviation is 4.59, where does she stand in relation to her classmates?<BR>\n" );
document.write( "She is in the top 15%.<BR>\n" );
document.write( "She is in the bottom 15%.<BR>\n" );
document.write( "She is in the top 5%.<BR>\n" );
document.write( "She is in the bottom 5%.\r<BR>\n" );
document.write( "\n" );
document.write( "In a normal distribution with mu = 25 and sigma = 9, what number corresponds to z = -2?<BR>\n" );
document.write( "21<BR>\n" );
document.write( "16<BR>\n" );
document.write( "7<BR>\n" );
document.write( "none of these \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #390758 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=390758\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">   <PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><font face = \"Tohoma\" size = 3 color = \"indigo\"><b> <BR>\n" );
document.write( "Hi,<BR>\n" );
document.write( "Note:  Bell shaped Curve showing placement of z = 0, z = ±1, 2, 3 <BR>\n" );
document.write( "Left or Right of z = 0 being 50% of the area under the standard normal curve...<BR>\n" );
document.write( "The area under a normal curve = 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C200%2C-5%2C5%2C-.5%2C1.5%2C+graph%28400%2C200%2C-5%2C5%2C-.5%2C1.5%2C+exp%28-x%5E2%2F2%29%29%2C+green%28line%281%2C0%2C1%2Cexp%28-1%5E2%2F2%29%29%2Cline%28-1%2C0%2C-1%2Cexp%28-1%5E2%2F2%29%29%29%2Cgreen%28line%282%2C0%2C2%2Cexp%28-2%5E2%2F2%29%29%2Cline%28-2%2C0%2C-2%2Cexp%28-2%5E2%2F2%29%29%29%2Cgreen%28line%283%2C0%2C3%2Cexp%28-3%5E2%2F2%29%29%2Cline%28-3%2C0%2C-3%2Cexp%28-3%5E2%2F2%29%29%29%2Cgreen%28line%28+0%2C0%2C+0%2Cexp%280%5E2%2F2%29%29%29%2Clocate%284.8%2C-.01%2Cz%29%2Clocate%284.8%2C.2%2Cz%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "As to: A set of data is normally distributed with a mean of 85 and SD of 4.59 <BR>\n" );
document.write( "x = 90 <BR>\n" );
document.write( " z = (90-85)/4.59 = 1.089  <BR>\n" );
document.write( "Exel function NORMSDIST(1.089) = .862 , 86.2% to the left and 13.8% to the right<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C200%2C-5%2C5%2C-.5%2C1.5%2C+graph%28400%2C200%2C-5%2C5%2C-.5%2C1.5%2C+0%2Cexp%28-x%5E2%2F2%29%29%2C+blue%28line%28+1.089%2C0%2C+1.089%2Cexp%28-1.089%5E2%2F2%29%29%29%2Clocate%284.8%2C-.01%2Cz%29%2Clocate%284.8%2C.2%2Cz%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "As:a normal distribution with mu = 25 and sigma = 9, if z = -2, <BR>\n" );
document.write( "then z = (x -25)/9 = -2,   and   x =  -18 + 25 = 7 </SPAN>\n" );
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