## chapter 5 the binomial probability distribution and related topics

The mean of a random variable, X, following a discrete probability distribution can be determined by using the formula E [X] = ∑x P (X = x). How to Find the Variance of a Discrete Probability

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## Find the Mean of the Probability Distribution / Binomial

To find the standard deviation of a probability distribution, we can use the following formula: σ = √ Σ(x i-μ) 2 * P(x i) where: x i: The i th value; μ: The mean of the distribution; P(x i): The probability of the i th value; For example