document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=973213>Question 973213</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The lifetimes of 20,000 light bulbs are normally distributed. The mean lifetime is 230 days. The standard deviation is 40 days. Find the values defined by the standard deviation in a normal distribution for 3 standard deviations. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #595446 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><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=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=595446\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 230 + 3(sd) = 230+3(40) = 350<BR>\n" );
document.write( "230 - 3(sd) = 230-3(40) = 110\r<BR>\n" );
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