
Perfilado
Quiz
•
Computers
•
1st Grade
•
Practice Problem
•
Medium
Ricardo Israel Roque Covarrubias
Used 2+ times
FREE Resource
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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes valores sería un dato atípico en la columna "Edad" si la mayoría de los datos están entre 20 y 40 años?
35
22
85 (✔️)
30
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si una columna "Ingreso Mensual" tiene una cardinalidad de 3 en un conjunto de 1000 registros, ¿qué indica esto?
Hay pocos valores distintos (✔️)
No hay valores nulos
Hay una correlación alta
Es una columna categórica
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué valor faltante podría detectarse en una columna "Fecha de Nacimiento"?
1990-05-14
NULL (✔️)
12/12/2000
1985-10-20
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué dato sería inconsistente en una columna "Código Postal"?
90210
12345
ABCD5 (✔️)
75001
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué dato atípico podrías encontrar en una columna "Temperatura" en grados Celsius?
25
30
-100 (✔️)
15
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si dos columnas "Nombre" y "Nombre Completo" contienen datos idénticos, ¿qué indica esto?
Redundancia de datos (✔️)
Análisis de correlación
Duplicación de registros
Alta cardinalidad
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una tabla de clientes, si la columna "País" siempre tiene el valor "México", ¿qué implica esto?
Redundancia (✔️)
Valores atípicos
Correlación alta
Baja cardinalidad
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