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Activity for James McLellan‭

Type On... Excerpt Status Date
Comment Post #287644 Thank you! This is terriffic!
(more)
about 1 year ago
Edit Post #287642 Initial revision about 1 year ago
Question What is the Name of Function for Probability of a Certain Sum on Random Die Rolls?
Hi. I'm writing a book about using statistics for roleplaying game design and am using this equation for calculating the probability of rolling a particular sum "n" on "z" throws of an "a"-sided die $$ {{1} \over {a^{z}}} \displaystyle \sum{k=0}^{\lfloor (n - z) / a \rfloor } (-1)^{k} (zCk) ({(...
(more)
about 1 year ago