
Tratamiento estadístico
Authored by Miguel García
Instructional Technology
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuál utilizamos para la asignación de variables en R ?
<=
=
<
<-
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qué se hace con los valores atípicos?
Se eliminan
Se cambiar por el promedio de los datos
Se corrige por un valor dentro de los rangos permitidos
Podría ser cualquiera de los anteriores.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál es la diferencia entre los paréntesis () y los corchetes [] en R?
Los paréntesis () acceden a elementos en un dataframe, los corchetes [] crean listas.
Los paréntesis () llaman funciones, los corchetes [] acceden a elementos en vectores, matrices o dataframes.
Los paréntesis () y los corchetes [] se usan de manera intercambiable.
Los paréntesis () son para operaciones matemáticas, los corchetes [] solo para matrices.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función se utiliza para leer un archivo CSV en R?
read.csv()
load.csv()
import.csv()
csv.read()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué operador se utiliza para acceder a columnas en un dataset en R?
!
%
:
$
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función se utiliza para calcular la media o promedio de un vector en R?
mean()
median()
sum()
average()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función se utiliza para calcular la desviación estándar de un vector en R?
desv()
sd()
deviation()
stdv()
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