
Estadística
Authored by Elizabeth Velasco
Mathematics
10th Grade
Used 25+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál es el coeficiente de variación si en una muestra de datos la media es 46 y la desviación estándar es 23?
30%
40%
45%
50%
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Si el coeficiente de variación es de 73% que podemos decir de la variabilidad de los datos:
Que existe una variabilidad baja
Que hay una correlación positiva débil
Que existe una variabilidad alta
Que existe una variabilidad media
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Para determinar el coeficiente de variabilidad necesitamos obtener la media de ambas muestras.
Verdadero
Falso
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Si se hace un estudio en donde se determina que las variables no están correlacionadas, es porque r (el coeficiente de correlación) es igual a:
1
-1
0
0.5
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Si en un estudio determinamos la correlación que existe entre las variables, y resulta que r es igual a 0.38, decimos que la relación entre estas variables es:
Positiva débil
Positiva moderada
Positiva fuerte
Positiva perfecta
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Para determinar la correlación entre dos variables necesitamos obtener la varianza de ambas muestras.
Verdadero
Falso
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El análisis de la regresión lineal, se usa para predecir la variable independiente.
Verdadero
Falso
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