The sequence { X n }, n ³ 1, of r.v.s is said to converge completely to
Question:
(i) Show that, if {Xn}, n ³ 1, converges completely to 0, then Xn
(ii) By means of an example, show that complete convergence is not necessary for a.s. convergence.
For Part (i), use Exercise 3 here and Exercise 4 in Chapter 2. For Part (ii), take W = (0, 1], A = BW, P = l, the Lebesgue measure, and choose the r.v.s suitably.
The most common way of establishing that Xn X is to slow that [Xn X], ³ 1, converges completely to 0.
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Related Book For
An Introduction to Measure Theoretic Probability
ISBN: 978-0128000427
2nd edition
Authors: George G. Roussas
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