statistics help

d1truth

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Feb 3, 2005
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let k be greater than or equal to 1, show that for anyset of n measurements, the fraction included in the interval y bar - ks to y bar + ks is at least (1-1/k^2).

hint: s^2= 1/n-1(i=1 to n(yi-y bar)^2)



the result is Tchebysheffs theorem.


Please help
 
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