document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=391657>Question 391657</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose the variable X has a normal distribution with mean 36 inches and standard deviation 2 inches.What proportion of these values is between 32 and 40 inches? If one of these X values is chosen at random, what is the probability that it is between 34 and 38 inches? <BR>\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 #277858 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=277858\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The values between 32 and 40 inches are within 2 standard deviations from the mean 36, and so covers around 95.4% of the distribution.  The values between 34 and 38 inches are within 1 standard deviation from the mean 36, and so covers around 68.2% of the distribution. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );