
Variable aleatoria
Authored by Teresa Mediavilla
Mathematics
12th Grade
Used 75+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Las variables aleatorias se clasifican en:
Escalonadas y continuas
Discretas y continuas
Discretas, continuas y mixtas
Escalonadas, continuas a la derecha y mixtas
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Es una variable aleatoria discreta:
El tiempo que pasamos en el ordenador
Los parientes de una persona
El peso de un niño
El tiempo entre la llegada de dos autobuses
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Es una variable aleatoria continua:
El número de estrellas del universo
Los libros que ha leído una persona
La cantidad de ropa de una persona
El peso del corazón de una persona
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Señala la que sea una propiedad de la función de distribución
Es siempre continua
es siempre discontinua
Es siempre continua a la derecha
es siempre continua a la izquierda
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Elige la frase más correcta
La función de distribución de una variable aleatoria discreta es escalonada
La función de distribución de una variable aleatoria continua es escalonada
La función de distribución de una variable aleatoria discreta es continua.
Las variables aleatorias continuas no tienen función de distribución
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La función de distribución de una variable aleatoria es:
Creciente
Constante
Decreciente
Solo es creciente en el caso discreto
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Si X es una variable aleatoria continua p(X=a) es
Cualquier valor de la recta real
Cualquier valor del intervalo [0,1]
1
0
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