hygepdf - Hypergeometric probability density function
Syntax
Y = hygepdf(X,M,K,N)
Description
Y = hygepdf(X,M,K,N) computes
the hypergeometric pdf at each of the values in X using
the corresponding size of the population, M, number
of items with the desired characteristic in the population, K,
and number of samples drawn, N. X, M, K,
and N can be vectors, matrices, or multidimensional
arrays that all have the same size. A scalar input is expanded to
a constant array with the same dimensions as the other inputs.
The parameters in M, K,
and N must all be positive integers, with N ≤ M.
The values in X must be less than or equal to all
the parameter values.
The hypergeometric pdf is
The result, y, is the probability of drawing
exactly x of a possible K items
in n drawings without replacement from a group
of M objects.
Examples
Suppose you have a lot of 100 floppy disks and you know that
20 of them are defective. What is the probability of drawing 0 through
5 defective floppy disks if you select 10 at random?
p = hygepdf(0:5,100,20,10)
p =
0.0951 0.2679 0.3182 0.2092 0.0841 0.0215
See Also
pdf, hygecdf, hygeinv, hygestat, hygernd
 | hygeinv | | hygernd |  |
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