
PyE - Capítulo 2
Authored by Clara Zaccaria
Engineering
University
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X e Y son independientes, entonces fX,Y(x,y)=fX(x)⋅fY(y)
Verdadero
Falso
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes es una propiedad de la función de distribución FX(x)?
FX(x) es decreciente
lim x→−∞ FX(x)=1
FX(x) es siempre continua
lim x→+∞ FX(x)=1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una distribución uniforme continua U(a,b), ¿cuál es la altura de la función de densidad fX(x) en el intervalo [a,b]?
1/b
1/(b−a)
b−a
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La propiedad de pérdida de memoria aplica a:
Distribución Normal
Distribución Exponencial
Distribución Uniforme
Distribución Binomial
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X es una variable aleatoria continua, P(X=c)=0 para cualquier c∈R."
Verdadero
Falso
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se lanza un dado equilibrado. Sea X el número de lanzamientos hasta obtener un 3. ¿Qué distribución tiene X?
Binomial
Geométrica
Poisson
Uniforme
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una distribución exponencial con λ=2, ¿cuál es P(X>1)?
e−1
e−2
1−e−2
1−e−1
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