PROBNEGB Function

Returns the probability from a negative binomial distribution.

Category: Probability
Returned data type: DOUBLE
Syntax
Arguments
Details
Example

Syntax

PROBNEGB(p, n, m)

Arguments

p

is a numeric probability of success parameter.

Range 0 ≤ p ≤ 1
Data type DOUBLE

n

is an integer number of successes parameter.

Range n ≥ 1
Data type INTEGER

m

is a positive integer random variable, the number of failures.

Range m ≥ 0
Data type INTEGER

Details

The PROBNEGB function returns the probability that an observation from a negative binomial distribution, with probability of success p and number of successes n, is less than or equal to m.
To compute the probability that an observation is equal to a given value m, compute the difference of two probabilities from the negative binomial distribution for m and m−1.

Example

The following statement illustrates the PROBNEGB function:
Statements
Results
 
select probnegb(0.5,2,1);
 
0.5
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Last updated: February 23, 2017