3. Suppose that h(x) is the hazard function of X, and h(x)=\ for all x. (a) Calculate the survival function S(x). (b) Derive the mean life E(X) and the mean residual life E(X-x|X>x), where E(X) is a special case of mean residual life with x=0. (c) Based on your answer in (b), do you think h(x) can be used to model human lifespan?

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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3. Suppose that h(x) is the hazard function of X, and h(x)=\ for all x.
(a) Calculate the survival function S(x).
(b) Derive the mean life E(X) and the mean residual life E(X-x|X>x), where E(X) is a special case of mean residual
life with x=0.
(c) Based on your answer in (b), do you think h(x) can be used to model human lifespan?
Transcribed Image Text:3. Suppose that h(x) is the hazard function of X, and h(x)=\ for all x. (a) Calculate the survival function S(x). (b) Derive the mean life E(X) and the mean residual life E(X-x|X>x), where E(X) is a special case of mean residual life with x=0. (c) Based on your answer in (b), do you think h(x) can be used to model human lifespan?
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