Examen de III Periodo, Normal Tipificada

Quiz
•
Mathematics
•
10th Grade
•
Hard
Standards-aligned
Laura Anabell Ramos Aparicio
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La duración de una batería se distribuye normalmente con media de 40 horas y desviación típica de 4 horas. Si una batería ha durado más de 38 horas, determine la probabilidad de que dure menos de 43 horas.
0.692
0.638
0.654
0.672
Tags
CCSS.HSS.ID.A.4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El área bajo la curva normal equivale al
100% de las observaciones
50% de las observaciones
75% de las observaciones
Ninguna
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
En una distribución normal:
Todos los datos se encuentran en el centro de la curva
Los valores van de menos infinito a cero
La Media es igual a la mediana y a la moda
No existe simetría
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
cual es el porcentaje correspondiente, al área sombreada debajo de la curva?
34%
32%
16%
20%
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El área entre (μ - σ) y (μ + σ), equivale al:
34%
95%
68%
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
El área bajo la curva normal tipificada. Entre z= 0.63 y z= 1.2, es:
0.0073
0.1492
0.8554
0.3707
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Encuentra el área para la P ( Z< 2.14)
0.0162
0.9838
0.9767
0.2236
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