hygestat (Statistics Toolbox)

Mean and variance for the hypergeometric distribution

Syntax

```
[MN,V] = hygestat(M,K,N)
```

Description

[MN,V] = hygestat(M,K,N) returns the mean and variance for the hypergeometric distribution with parameters specified by M, K, and N. Vector or matrix inputs for M, K, and N must have the same size, which is also the size of MN and V. A scalar input for M, K, or N is expanded to a constant matrix with the same dimensions as the other inputs.

The mean of the hypergeometric distribution with parameters M, K, and N is NK/M, and the variance is

Examples

The hypergeometric distribution approaches the binomial distribution, where
p = K / M as M goes to infinity.

[m,v] = hygestat(10.^(1:4),10.^(0:3),9)
m =
    0.9000    0.9000    0.9000    0.9000
v =
    0.0900    0.7445    0.8035    0.8094
[m,v] = binostat(9,0.1)
m =
    0.9000
v =
    0.8100

hygernd icdf