document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=514001>Question 514001</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the total cholesterol in children aged 10-15 is assumed to follow a normal distribution with a mean of 191 and a standard deviation of 22.4.\r<BR>\n" );
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document.write( "what is the proportion of children 10-15 years of age have total cholesterol between 180 and 190? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #343242 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=343242\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the total cholesterol in children aged 10-15 is assumed to follow a normal distribution with a mean of 191 and a standard deviation of 22.4. <BR>\n" );
document.write( "what is the proportion of children 10-15 years of age have total cholesterol between 180 and 190?<BR>\n" );
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document.write( "z(180) = (180-191)/22.4 = -0.4911<BR>\n" );
document.write( "z(190) = (190-191)/22.4 = -0.0446<BR>\n" );
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document.write( "P(180 < x < 190) = P(-0.4911 < z < -0.0446) = 0.1705<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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