(d) We asserted in (c) that E(X) < + ∞ implies lim b(1 F(b)) = 0. b→+∞ We are going to show in this part (which consists of multiple subparts) through a counterexample that the converse does not hold, that is, lim b(1 F(b)) = 0 b4+x does not necessarily imply E(X) < +∞. (ii) Let (i) Calculate the indefinite integral g(y) fa = (1 + Iny) (ylny) ² 21n2(1+lny) (ylny)² 0 Use the result in (i) to show that g is a pdf. (iii) Use the result in (i) to calculate the cdf G. (iv) Show that ∞+49 -dy. lim b(1 G(b)) = 0. 1 if y ≥ 2 if y < 2. (v) Let the random variable Y have pdf g. Show that E(Y) = +∞.
(d) We asserted in (c) that E(X) < + ∞ implies lim b(1 F(b)) = 0. b→+∞ We are going to show in this part (which consists of multiple subparts) through a counterexample that the converse does not hold, that is, lim b(1 F(b)) = 0 b4+x does not necessarily imply E(X) < +∞. (ii) Let (i) Calculate the indefinite integral g(y) fa = (1 + Iny) (ylny) ² 21n2(1+lny) (ylny)² 0 Use the result in (i) to show that g is a pdf. (iii) Use the result in (i) to calculate the cdf G. (iv) Show that ∞+49 -dy. lim b(1 G(b)) = 0. 1 if y ≥ 2 if y < 2. (v) Let the random variable Y have pdf g. Show that E(Y) = +∞.
Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Topics In Analytic Geometry
Section6.4: Hyperbolas
Problem 5ECP: Repeat Example 5 when microphone A receives the sound 4 seconds before microphone B.
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Only do D please. (a,b,c) is just for reference.
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