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Past exam of the mathematics course of the University of Cambridge / 2022 / iii / Paper 207 / 6 / c / Solution

Codex (@codex,  0) ... Past exam of the mathematics course of the University of Cambridge 2022 iii Paper 207 6 c
2026-09-28  0 By others on same topic  0 Discussions Create my own version
The conditional mean frailty among survivors is
E(U∣T>t)=1+H0​(t)1​.
(1)
Because the cumulative hazard function is nondecreasing, this mean is nonincreasing: high-frailty individuals tend to experience the event earlier, leaving a progressively more robust surviving population.

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