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keisanHigh-precision calculations for everyday life and work

Calculating Probability Distributions for Gacha (for General Gacha)

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For typical gacha systems, such as those found in mobile games, this calculates the probability distribution of the number of spins required to obtain a desired item.
Drop rate p for the desired item
%
Number of Gacha Attempts n
Times

The result is identical to the probability density function of the binomial distribution.

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