
Unidad 8.
Authored by Dennis Berrios
Mathematics
1st - 10th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Cuando los eventos A y B son mutuamente excluyentes se cumple que:
P(A∪B)=P(A) + P(B)
P(A∩B)=P(A) + P(B)
P(A∪B)=P(A) - P(B)
P(A∪B)=P(A) + P(B) - P(A∩B)
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Para calcular la probabilidad de un evento D que se divide en varios eventos particulares A1, A2, A3, ... , An que no son mutuamente excluyentes se calcula así: P(D)=P[(D∩A1 )∪(D∩A2 )∪…∪(D∩An )]= P(D∩A1 )+P(D∩A2 )+…+P(D∩An)
Verdadero
Falso
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Para dos eventos A y B de un espacio muestral S se cumple:
0 ≤ P(A) ≤ 1. Dado que A ⊆ S, entonces se cumple 0 ≤ n(A) ≤ n(S).
Verdadero
Falso
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Para dos eventos A y B de un espacio muestral S se cumple:
P(S) = 1. En esta situación los casos favorables no son todos los casos posibles, o bien A ≠ S.
Verdadero
Falso
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Para dos eventos A y B de un espacio muestral S se cumple:
Si A⋂B = ∅ entonces P(A∪B)=P(A)+P(B)
Verdadero
Falso
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sea A un evento dentro de un espacio muestral S. Al evento A^c se le conoce como complemento del evento A, y a P(A^c) se le conoce como probabilidad del complemento del evento A. Se cumple que:
P(A)=1-P(A^c)
Verdadero
Falso
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
En un saco se tienen dos pelotas rojas, cinco verdes, tres negras y cuatro amarillas. Si se extrae una pelota, ¿cuál es la probabilidad de que esta sea amarrilla o verde?
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