Birnbaum–Saunders distribution

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A two-parameter distribution originally proposed by Birnbaum and Saunders in 1969 to describe the lifetime (x>0) of a component liable to experience a fatigue failure:. The parameters α and β are positive. The mean and variance are, respectively, β(1+½ α2) and (αβ)2(1+54 α2).

Subjects: Probability and Statistics.

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