
Test de prueba
Authored by Antonia Oya
Mathematics
University

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Si la puntuación de un estudiante en un examen sigue una distribución N(6,2), podemos obtener la distribución de la suma de las puntuaciones de 10 estudiantes elegidos al azar aplicando...
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indica las distribuciones de probabilidad que verifican la propiedad de reproductividad
Exponencial
Normal
Uniforme
F de Snedecor
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si X e Y son variables aleatorias independientes con Var X=2 y Var Y=4, la varianza de la variable aleatoria 3X-Y es igual a
22
2
14
10
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Si el tiempo requerido por un estudiante para realizar un examen sigue una distribución Exp(2), podemos obtener la distribución aproximada de la suma de los tiempos requeridos por una m.a.s. de 40 estudiantes aplicando...
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