
Probabilidades 1: Conceptos Básicos. CFredes/SCañete
Authored by Profe Samu 2023
Mathematics
11th - 12th Grade
Used 4+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si se extrae una letra al azar de la palabra CUCHUFLETA, ¿cuál es la probabilidad de obtener una vocal?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si es un evento imposible, y es la probabilidad de que ocurra , es correcto afirmar que:
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De 35 estudiantes del 4°B, 12 juegan solo futbol, 13 juegan solo tenis y el resto juega a la pinta. ¿Si se extrae un estudiante al azar, ¿cuál es la probabilidad de que juegue a la pinta?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se lanzan dos dados comunes de 6 caras. ¿Cuál es la probabilidad de obtener un producto de las puntuaciones igual a 12?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si y , ¿Qué expresión es igual a ?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una urna hay 10 bolitas, enumeradas del 1 al 10. Si se extrae al azar una bolita, ¿cuál es la probabilidad de obtener una bolita con un n° impar y divisor de 42?
Answer explanation
Sean los eventos y , entonces:
y de donde se tiene que , por lo tanto:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si se extrae una letra al azar de los apellidos FREDES y CAÑETE (por separado), ¿en qué apellido es más probable obtener una E?
FREDES
CAÑETE
En ambos apellidos es la misma probabilidad
Esta no es xd
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