A binomial distribution is a distribution produced by an experiment with 2 possible outcomes, where there is a fixed number of successes in X (random variable) trials, and each trial is independent of the others.
A function that involves multiplying a series of consecutive descending natural numbers, denoted by !. It is used to calculate a binomial distribution.
A factorial function is a function that involves multiplying a series of consecutive descending natural numbers. A factorial is denoted by !.
The square root of the variance is the standard deviation. Standard deviation is one way to measure the spread of a set of data.
A measure of the spread of the data set equal to the mean of the squared variations of each data value from the mean of the data set.
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