document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1197892>Question 1197892</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A manufacturer knows that their items have a normally distributed lifespan, with a mean of 9.3 years, and standard deviation of 1.7 years.\r<BR>\n" );
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document.write( "If you randomly purchase one item, what is the probability it will last longer than 11 years?\r<BR>\n" );
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document.write( "Round answer to four 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 #831352 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=831352\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Normal Distribution: µ = 9.3 and σ = 1.7  <BR>\n" );
document.write( "Using a hand-held TI or similarly an inexpensive calculator like an Casio fx-115 ES plus<BR>\n" );
document.write( "P(x > 11) = normcdf(11, 9999, 9.3, 1.7) = .1587 (Rounded to four decimal places)<BR>\n" );
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