document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1180133>Question 1180133</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let X be a random variable with X = N(200, 10^2). <BR>\n" );
document.write( "If you take a sample of size n = 10,<BR>\n" );
document.write( "what is the probability that the sample mean is greater than 220? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #809820 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=809820\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the sd is 10, the sqrt (V)<BR>\n" );
document.write( "z=(220-200)/10/sqrt(10)<BR>\n" );
document.write( "=20*sqrt(10)/10<BR>\n" );
document.write( "=6.32<BR>\n" );
document.write( "the probability is essentially 0 (1 x 10^(-10))<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );