Fig. 6: Density functions for winter precipitation probabilities in De Bilt.
From: Increased persistence of warm and wet winter weather in recent decades in north-western Europe

a Probability density function of a binomial distributed variable with n = 21 and p = 0.6519 (in red) and p = 0.5556 (in orange). b Cumulative density function of (a) with horizontal dashed lines denoting the cumulative probability of less than 14 days with precipitation exceeding 0.5mm.