Binomial distribution

2021-01-07 Binomial distribution shark 1 min read

probability mass function = $C^k_n p^k (1-p)^{n-k}$ , n is sample number, p is the probability of situation, k is the number of the situation.

mean: $\mu x = n p$

variance: $\sigma x = \sqrt{np (1-p)$

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