document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131810>Question 1131810</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the normal curve to make the estimates requested. \r<BR>\n" );
document.write( "\n" );
document.write( "The census from a certain year revealed that 22.8% of the U.S. veteran population were disabled. In a random selection of 100 veterans, estimate the probability that 30 to 40 of them were disabled. (Round your answer to three decimal places.)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #748537 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=748537\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> np=mean or 22.8<BR>\n" );
document.write( "np(1-p) = variance or 22.8*0.772=17.60<BR>\n" );
document.write( "sd= sqrt (V)=4.2<BR>\n" );
document.write( "correction factor want mean between 29.5 and 40.5<BR>\n" );
document.write( "z=(29.5-30)/4.2 or -0.12<BR>\n" );
document.write( "z=(40.5-30)/4.2 or +2.5<BR>\n" );
document.write( "probability z is between those values is 0.542<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );