User:DagErlingSmørgrav/Sandbox

$$ P_{ue}(n,w,\epsilon) = {{n-1} \over {nw}} {nw \choose 2} \epsilon^2 (1-\epsilon)^{nw-2} $$

$$ P_{ue}(n,\epsilon) = q^{-r} \sum_{e = d_{min}}^n {n \choose e} \epsilon^e (1-\epsilon)^{n-e} $$