document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1123119>Question 1123119</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Trading volume on the New York Stock Exchange has been growing in recent years.<BR>\n" );
document.write( "For the first 4 months of 2005, the daily average volume was 646 million shares.<BR>\n" );
document.write( "The probability distribution of daily volume is approximately normal with a <BR>\n" );
document.write( "standard deviation of 100 million shares.\r<BR>\n" );
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document.write( "-What is the probability trading volume will be less than 550 million shares?\r<BR>\n" );
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document.write( "-What percentage of the time does the trading volume exceed 710 million<BR>\n" );
document.write( "shares?<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 #739387 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=739387\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=(x-mean)/sd<BR>\n" );
document.write( "z<(550-646)/100<BR>\n" );
document.write( "z<-0.96 and probability is 0.1685<BR>\n" );
document.write( "z>(710-646)/100  or >0.64;  0.2611 probability or 26.11% </SPAN>\n" );
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