document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=855430>Question 855430</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Assuming that the weights of newborn babies are normally distributed with mean 6.5 lbs and standard deviation 1.2lbs, how many babies in a group of 80 do we expect to weight more than 8.9lbs? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #515354 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=515354\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> m = 6.5<BR>\n" );
document.write( "s = 1.21<BR>\n" );
document.write( "z = (x-m)/s<BR>\n" );
document.write( "x = 8.9<BR>\n" );
document.write( "z = (8.9-6.5)/1.21 = 2.4/1.21 = 1.98<BR>\n" );
document.write( "p(z < 1.98) = .9761 from the following z-score table<BR>\n" );
document.write( "<a  rel=nofollow HREF= \"http://lilt.ilstu.edu/dasacke/eco148/ztable.htm\" target = \"_blank\">http://lilt.ilstu.edu/dasacke/eco148/ztable.htm</a><BR>\n" );
document.write( "p(z > 1.98) = 1 - .9761 = .0239<BR>\n" );
document.write( "out of 80 babies, .0239 * 80 = 1.912 are expected to be over 8.9 pounds.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );