Week #10 – Negative Binomial

The negative binomial distribution is the probability distribution of the number of Bernoulli (yes/no) trials required to obtain r successes.

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Week #9 – Random Walk

A random walk is a process of random steps, motions, or transitions.  It might be in one dimension (movement along a line), in two dimensions (movements in a plane), or in three dimensions or more.

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Week #5 – Differencing of a Time Series

in discrete time is the transformation of the series to a new time series where the values are the differences between consecutive values of the original series.

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