Distribución Binomial
Quiz
•
Other
•
11th - 12th Grade
•
Hard
MAX MAURICIO
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Halle
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
En un colegio que tiene muchos alumnos una de cada cinco personas es zurda. Se toma una muestra aleatoria de personas. ¿Qué tan grande debe ser una muestra aleatoria para que la probabilidad de que contenga al menos una persona zurda sea mayor que 0,95?
12
14
13
11
10
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La tabla muestra la distribución de probabilidad de una variable aleatoria discreta X. Halla la esperanza matematica.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Me gustan el 30% de las canciones que tiene mi amigo en su MP3. Si elijo ocho canciones al azar. Halle la probabilidad de que me gusten al menos tres canciones.
0,038
0,143
0,284
0,448
0,348
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
El hermano pequeño de Steph, Lucas, solo tiene una oportunidad del 20% de encestar un tiro libre. Va a lanzar 4 tiros libres. Steph se compromete a comprarle a Lucas un helado si encesta 3 o más de sus 4 tiros libres. ¿Cuál es la probabilidad de que enceste 3 o más de los 4 tiros libres?
0,0234
0,0272
0,1345
0,1256
0,0352
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La distribución de probabilidad de una variable aleatoria discreta X se define por: Halle la esperanza matemática.
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
X es una variable aleatoria discreta que solo puede tomar los valores 1, 2 y 4. Se sabe que y que la media de la distribución es 2,8. Halle .
0,2
0,5
0,3
0,6
0,7
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