He would weep for hours together, and I verily believe that to the very end this spoilt child of life thought his weak tears in some way efficacious.

The negative exponential distribution is a special case of the gamma distribution in which k=1. Another important special case of a gamma distribution with parameters k and 𝜃=2 is the χ² distribution G(k,2) with n=2k degrees of freedom. […] Gamma distributions have an additivity property: the sum of two random variables following gamma distributions G(k_1,𝜃) and G(k_2,𝜃) is a random variable following a gamma distribution G(k_1+k_2,𝜃) with parameters k_1+k_2 and 𝜃 […] .

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If we take up the sleeves a bit, that shirt will look much better on you.