
clase 2 discretas
Authored by daniela rodriguez
Mathematics
University
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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Una variable que cuenta el numero de ensayos Bernulli hasta el primer exito tiene
Distribucion Binomial
Distribucion Geometrica
Distribucion Bernulli
Distribucion Binomial negativa
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El rango de una variable X es 1,2,3,....,10. Como calculo P(2<X≤ 5)
Sumo las probabilidades puntuales del 2 al 5
Sumo las probabilidades puntuales del 3 al 5
Sumo las probabilidades puntuales del 2 al 4
Sumo las probabilidades puntuales del 3 al 4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El rango de la variable Poisson es finito
SI
NO
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La esperanza de una variable mide la variabilidad de la variable respecto del centro
SI
NO
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La varianza de una variable mide la variabilidad de la variable respecto de la esperanza
SI
NO
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Una variable aleatoria que indica el número de éxitos en n pruebas de Bernoulli, sigue una distribución binomial satisface que:
El número de pruebas es suficientemente grande
Al aumentar el número de pruebas el producto np permanece constante
El resultado en una prueba influye en el resultado de las restantes.
Las pruebas son independientes y la probabilidad de éxito constante.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El rango de una variable X es 1,2,3,....,10. y F es su fun. dist. acumulada entonces P(2<X≤ 5) =
F(5)-F(2)
F(4)-F(2)
F(5)-F(3)
F(4)-F(3)
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