- #1
Mark53
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Homework Statement
Given that r≥(n-1)/(k^2)
a) Show that the proportion of observations for which |di | ≥ k cannot exceed 1/(k^2)
b) For what values of k is this meaningful.
The Attempt at a Solution
[/B]
a)
(r/n)≥(n-1)/(n*k^2)
(r/n)≥(n-1)/(n*k^2)
(r/n)≥(n)/(n*k^2) -1/(n*k^2)
1/(n*k^2)+(r/n) ≥ 1/(k^2)
Is this the correct way to solve it?
b)
would k only be meaningful if it does not =0