document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1134243>Question 1134243</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose the scores of students on a Statistics course are Normally distributed with a mean of 226 and a standard deviation of 55. <BR>\n" );
document.write( "What percentage of the students scored between 226 and 336 on the exam? (Give your answer to 3 significant figures.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #751625 by </B><A HREF=/tutors/aboutme.mpl?userid=Glaviolette><B>Glaviolette(140)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Glaviolette><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=Glaviolette><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=751625\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 336 is 110 above 226 which would be 2 standard deviations.  According to the empirical rule, 95% of the data in a normal distribution is 2 standard deviations away from the mean on either side.  Therefore, half of that would be withing 2 st. dev. above the mean, or 47.5%. </SPAN>\n" );
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