Calculates the the number of successes in a sequence of independent and identically distributed Bernoulli trials before a specified (non-random) number of failures occurs.
|3||fail||3.000||Stores the fail value.|
|5||sccs||5.000||Stores the sccs value.|
|.4||prob||0.4000||Stores the prob value.|
|pmf||0.07741||Calculates the pmf.|
"Different texts adopt slightly different definitions for the negative binomial distribution. They can be distinguished by whether the support starts at k = 0 or at k = r, whether p denotes the probability of a success or of a failure, and whether r represents success or failure, so it is crucial to identify the specific parametrization used in any given text."