
Variables aleatorias 2 Eco
Authored by MARÍA CELIA RODRÍGUEZ CAMPOS
Mathematics
University
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se calcula la media de una v. a. discreta con valores xi de probabilidades pi, i=1,...,n
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes afirmaciones sobre la media de una v. a. X es cierta?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes afirmaciones sobre la varianza de una v. a. X es FALSA?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una variable aleatoria tipificada:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes afirmaciones sobre la moda de una v. a. CONTINUA es cierta?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X es una variable aleatoria continua y F(c) = 0.5, entonces:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X es una v. a. continua y simétrica respecto a c, entonces su función de densidad verifica:
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