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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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