Question
ESPAOL 22.- El valor del coeficiente de determinacin de una situacin particular es 0.49. Cul es el valor del coeficiente de correlacin? Seleccione una: a.-0.49
ESPAOL
22.- El valor del coeficiente de determinacin de una situacin particular es 0.49. Cul es el valor del coeficiente de correlacin?
Seleccione una:
a.-0.49
b.No se puede saber
c.0.07
d.0.7
23 .- Para que la ecuacin de estimacin sea un estimador perfecto de la variable dependiente, se debe cumplir lo siguiente:
Seleccione una:
a.todos los puntos estn sobre la recta de regresin
b.la lnea de regresin es horizontal
c.el coeficiente de determinacin es 0
d.el coeficiente de correlacin es -1
24.- Cul de los siguientes planteamientos no es aplicable al coeficiente de determinacin?
Seleccione una:
a.Su valor oscila entre -1 y +1
b.Entre mayor sea es mejor
c.Se debe expresar en porcentaje
d.Se puede calcular elevando al cuadrado el coeficiente de correlacin
INGLES
22.- The value of the coefficient of determination of a particular situation is 0.49. What is the value of the correlation coefficient?
Select one:
to. -0.49
b. Can't know
c. 0.07
d. 0.7
23 .- For the estimation equation to be a perfect estimator of the dependent variable, the following must be fulfilled:
Select one:
to. all points are on the regression line
b. the regression line is horizontal
c. the coefficient of determination is 0
d. the correlation coefficient is -1
24.- Which of the following approaches is not applicable to the coefficient of determination?
Select one:
to. Its value ranges from -1 to +1
b. The older the better
c. It must be expressed as a percentage
d. It can be calculated by squaring the correlation coefficient
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