Tabla resumen de las distribuciones discretas principales
| Distribución | Parámetros | Función de densidad | Esperanza | Varianza |
| Bernouilli | 0 ≤ p ≤ 1 | pk (1
− p)1 - k k = 0, 1 |
p | p (1 − p) |
| Binomial | 0
≤ p ≤ 1 n = 1, 2, ... |
 |
n p | n p (1 − p) |
| Poisson | λ > 0 |
 |
λ | λ |
| Multinomial |
0
≤ p1, ..., pr ≤ 1 (p1+ ... + pr =1) n = 1, 2, ... |
 |
 |
 |
| Uniforme discreta |
n = 1, 2, ... |
 |
 |
 |
| Hipergeométrica | N = N1 +
N2 p = N1/N |
 |
n p |
 |
| Pascal | 0 ≤ p ≤ 1 | p (1
− p)k k = 0, 1, 2, ... |
 |
 |
| Binomial negativa |
0
≤ p ≤ 1 r > 0 |
 |
 |
 |