- Thread starter k.dot
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It shows that the marginal pdf is a Pareto distribution, or the Lomax distribution with parameter [math] \alpha = \lambda = 1 [/math]

https://en.wikipedia.org/wiki/Lomax_distribution

You should continue with the marginal pdf and obtain the answer (Or if you know the survival function it could help too). Not quite follow what you did in the last post.