document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=935944>Question 935944</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3.78 	The mean time taken by all participants to run a road race was found to be 250 minutes with a standard deviation of 30 minutes. Using Chebyshev’s theorem, find the percentage of runners who ran this road race in<BR>\n" );
document.write( "A.   190 to 310 minutes 			B.   160 to 340 minutes 			C.   175 to 325 minutes<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 #569624 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=569624\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A. P = 1 - 1/2^2 = 3/4 0r 75%<BR>\n" );
document.write( "B. P = 1 - 1/3^2  = 8/9<BR>\n" );
document.write( "C. 75/30 = 2.5<BR>\n" );
document.write( "P = 1 - 1/(2.5)^2  = .84  0r 84% </SPAN>\n" );
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