Question

22. The coefficient of determination explains the relationship between two variables the proportion of variance in...

22. The coefficient of determination explains

  1. the relationship between two variables

  2. the proportion of variance in one variable accounted for by another variable and

    vice versa

  3. the cause–effect relationship between two variables

  4. all of the above

23. The ____________ assumption is met if, in a scatterplot, the distance from the points to the line is relatively equal all along the line.

a. homoscedasticity b. linearity
c. curvilinearity
d. heterolinearity

24. The strength of a relationship between two variables in correlation is ________________ of the significance testing.

a. highly dependent
b. actually independent (not completely, but mostly) c. highly independent
d. the obverse

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Answer #1

Ans:

22)

The coefficient of determination explains:

the proportion of variance in one variable accounted for by another variable and vice versa

23)homoscedasticity

The homoscedasticity assumption is met if, in a scatterplot, the distance from the points to the line is relatively equal all along the line.

24)

actually independent (not completely, but mostly)

The strength of a relationship between two variables in correlation is actually independent (not completely, but mostly) of the significance testing.

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