document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1186285>Question 1186285</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.4 years, and standard deviation of 0.6 years.\r<BR>\n" );
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document.write( "The 2% of items with the shortest lifespan will last less than how many years?\r<BR>\n" );
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document.write( "Give your answer to one decimal place.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #817168 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=817168\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z(0.02)=-2..05<BR>\n" );
document.write( "z=(x-mean(/sd)<BR>\n" );
document.write( "-2.05=(x-12.4)/0.6<BR>\n" );
document.write( "-1.23=x-12.4<BR>\n" );
document.write( "x=11.17 years or 11.2 years\r<BR>\n" );
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