document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1082108>Question 1082108</A>: <I><SPAN STYLE=\"word-break: break-all;\">  The number of column inches of classified advertisements appearing on Mondays in a certain daily newspaper is normally distributed with a population mean of 320 and a population standard deviation of 20 inches. For a randomly chosen Monday, what is the probability that there will be between 280 and 360 column inches of classified advertisement? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #696189 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=696189\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The z value is (x-mean)/sd<BR>\n" );
document.write( "therefore (280-320)/20=-2 and (360-320)/20=+2<BR>\n" );
document.write( "the probability between -2 and +2 is 0.9544. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );