document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=641530>Question 641530</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the mean of a normal distribution is 70 and the standard deviation is 10 what is the probability the item selected at random for this sample will be greater than 80? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #403701 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=403701\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the mean of a normal distribution is 70 and the standard deviation is 10 what is the probability the item selected at random for this sample will be greater than 80?<BR>\n" );
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document.write( "z(80) = (80-70)/10 = 1<BR>\n" );
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document.write( "P(x > 80) = P(z > 1) = 0.1587<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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