# 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.

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.

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

A
B
C
1
State
Number of Failures
Number of Successes
2
Alabama
10
4
3
1
3
4
Arizona
10
5
5
Arkansas
9
10
6
California
7
2
7
8
9
8
Connecticut
6
1
9
Delaware
4
7
10
Florida
5
8
11
Georgia
2
6
12
Hawaii
3
10
13
Idaho
9
5
14
15
0.05504866
D
1
Probability of successes
2
0.13
3
0.1
4
0.25
5
0.5
6
0.65
7
0.35
8
0.25
9
0.01
10
0.7
11
0.09
12
0.25
13
0.5
14
15

JavaScript errors detected