document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1164245>Question 1164245</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Possible Points: 2<BR>\n" );
document.write( "The points obtained by students on a test in a class are normally distributed with a mean of 60 points and a standard deviation of 5 points. About what percent of students have scored less than 70 points?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #788640 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=788640\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> About means use empirical rule<BR>\n" );
document.write( "This is probability something is fewer than 2 sd s above the mean (z<(70-60)/5)<BR>\n" );
document.write( "This is 0.9772 exactly<BR>\n" );
document.write( "with the empirical rule 95% are between +/- 2 sd s, so there is 0.0250 on either side, so the part that isn't possible is the part below +2 sd, and that has probability 0.9750.<BR>\n" );
document.write( "The answer will then be the complement or 0.9750 probability. </SPAN>\n" );
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