Question: 6. (a) Let 0 < a < 1 and Tn = X k: |k1 2 n|>1 2 an n k . By considering
6.
(a) Let 0 < a < 1 and Tn =
X k: |kâ1 2 n|>1 2 an
n k
.
By considering the binomial distribution or otherwise, show that T
1/n n â
2 p
(1 + a)1+a(1 â a)1âa
.
(b) Find the asymptotic behaviour of T 1/n n , where a > 0 and Tn =
X k: k>n(1+a)
nk k!
.
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