Suppose Xi, i=1,2,...,n are correlated RVs with mean zero
and unit variance
1 n
Sn = --- Σ Xi
n i=1
1 n 2
Kn = --- Σ Xi
n i=1
Prove or Disprove
a.s a.s
If Sn → 0 as n → ∞ then Kn → 1 as n → ∞
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