# NEGBINOMDIST

### Definition of NEGBINOMDIST

Calculates the probability of drawing a certain number of failures before a certain number of successes given a probability of success in independent trials.

### Sample Usage

`NEGBINOMDIST(4,2,0.1)`

`NEGBINOMDIST(A2,A3,A4)`

### Syntax

`NEGBINOMDIST(num_failures, num_successes, prob_success)`

`num_failures`

- The number of failures to model.`num_successes`

- The number of successes to model.`prob_success`

- The probability of success in any given trial.

### Notes

`NEGBINOMDIST`

models the negative binomial distribution, which is related to the binomial distribution except that the number of trials is varaible whereas the number of successes is fixed.

### See Also

`WEIBULL`

: Returns the value of the Weibull distribution function (or Weibull cumulative distribution function) for a specified shape and scale.

`POISSON`

: Returns the value of the Poisson distribution function (or Poisson cumulative distribution function) for a specified value and mean.

`NORMSINV`

: Returns the value of the inverse standard normal distribution function for a specified value.

`NORMSDIST`

: Returns the value of the standard normal cumulative distribution function for a specified value.

`NORMINV`

: Returns the value of the inverse normal distribution function for a specified value, mean, and standard deviation.

`NORMDIST`

: Returns the value of the normal distribution function (or normal cumulative distribution function) for a specified value, mean, and standard deviation.

`LOGNORMDIST`

: Returns the value of the log-normal cumulative distribution with given mean and standard deviation at a specified value.

`LOGINV`

: Returns the value of the inverse log-normal cumulative distribution with given mean and standard deviation at a specified value.

`HYPGEOMDIST`

: Calculates the probability of drawing a certain number of successes in a certain number of tries given a population of a certain size containing a certain number of successes, without replacement of draws.

`EXPONDIST`

: Returns the value of the exponential distribution function with a specified lambda at a specified value.

`BINOMDIST`

: Calculates the probability of drawing a certain number of successes (or a maximum number of successes) in a certain number of tries given a population of a certain size containing a certain number of successes, with replacement of draws.

### In order to use the NEGBINOMDIST formula, start with your edited Excellentable

### Then type in the NEGBINOMDIST Formula in area you would like to display the outcome:

### Type in the complete NEGBINOMDIST formula for a cell as shown below:

### Excellentable will generate the outcome when hitting enter.