Statistics Dictionary
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Hypergeometric Probability
Hypergeometric probability is the probability that an n-trial
hypergeometric experiment
results in exactly x successes,
when the population consists of N items, k of which are
classified as successes.
Hypergeometric probability is denoted by h(x; N, n, k)
and can be computed according to the hypergeometric formula below.
Hypergeometric Formula. Suppose a
population consists of
N items,
k of which are successes. And a
random sample drawn from that population consists on
n items,
x of
which are successes. Then the hypergeometric probability is:
h(x; N, n,
k) = [ kCx ] [ N-kCn-x ] / [
N
Cn ]
where
kC
x is the combination of
k things taken
x at a time.
