document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=609605>Question 609605</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLEASE HELP!!!\r<BR>\n" );
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document.write( "An animal clinic kept record of the life spans of certain poodles.  The number of years the dogs lived are 8, 10, 12, 15, 17, and 13.  What is the standard deviation of the poodle life spans? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #384285 by </B><A HREF=/tutors/aboutme.mpl?userid=SwiftAlbatross><B>SwiftAlbatross(13)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=SwiftAlbatross><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=SwiftAlbatross><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=384285\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First find the mean:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mu+=+%288+%2B+10+%2B+12+%2B+15+%2B+17+%2B+13%29%2F6+=+75%2F6+=+12.5 ALIGN=MIDDLE  ALT=\"mu+=+%288+%2B+10+%2B+12+%2B+15+%2B+17+%2B+13%29%2F6+=+75%2F6+=+12.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Then find the variance:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sigma%5E2+=+%28%288+-+12.5%29%5E2+%2B+%2810+-+12.5%29%5E2+%2B+%2812+-+12.5%29%5E2+%2B+%2815+-+12.5%29%5E2+%2B+%2817+-+12.5%29%5E2+%2B+%2813+-+12.5%29%5E2%29+%2F+6+=+%28%28-4.5%5E2%29+%2B+%28-2.5%5E2%29+%2B+%28-0.5%5E2%29+%2B+%282.5%5E2%29+%2B+%284.5%5E2%29+%2B+%280.5%5E2%29+%29+%2F+6+=+%2820.25+%2B+6.25+%2B+0.25+%2B+6.25+%2B+20.25+%2B+0.25%29+%2F+6+=+53.5%2F6+=+8.9166667 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >}\r<BR>\n" );
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document.write( "Then find the square root of the variance to get the standard deviation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sigma+=+sqrt%288.9166667%29+=+2.98608 ALIGN=MIDDLE  ALT=\"sigma+=+sqrt%288.9166667%29+=+2.98608\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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