
27/04/22 E1S1
Authored by LUCIA GONZALEZ
Education, Mathematics
University
Used 3+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Funciones marginales
Es la multiplicación de filas y columnas
Es la multiplicación de filas y la probabilidad conjunta
Es la suma de la columnas o suma de las filas
Es la sumatoria de la multiplicación de filas*probabilidad + columnas*probabilidad
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El recorrido de las discretas
es entero
La sumatoria debe dar 1
La multipllicación deber dar 1
Ninguna de las anteriores es correcta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La _____ es una medida descriptiva para valorar que tan fuerte estan relacionadas dos variables aleatorias
Esperanza
probabilidad conjunta
Independencia
covarianza
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si Cov(x,y) < 0 quiere decir que si una variable crece, la otra tiende a decrecer
Verdadero
Falso
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual es la probabilidad de xy=3
0.05
0.35
0.15
No es una distribución de probabilidad conjunta aceptable
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