document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1162359>Question 1162359</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use a normal approximation to find the probability of the indicated number of voters. In this​ case, assume that 183 eligible voters aged​ 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged​ 18-24, 22% of them voted.<BR>\n" );
document.write( "Probability that fewer than 44 voted </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #786739 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=786739\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Can use normal approximation<BR>\n" );
document.write( "np=mean or 183*0.22=40.26<BR>\n" );
document.write( "np(1-p) is variance or 40.26*0.78 or 31.40<BR>\n" );
document.write( "sqrt(V)=sd=5.60<BR>\n" );
document.write( "z=(43.5-40.26)/5.60 or 0.58<BR>\n" );
document.write( "probability z < 0.58 is 0.7190 </SPAN>\n" );
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