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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 → ∞ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.168.30.222 ※ 編輯: GSXSP 來自: 218.168.30.222 (01/14 00:38)