In regression​ analysis, the coefficient of​ determination: a. Becomes smaller as the fit of the regression line improves.
b. Is used to determine the expected value of the net income based on the regression line.
c. Ranges between negative one and positive one.
d. Is used to determine the proportion of the total variation in the dependent variable​ (y)

The correct answer is the option D and it is incomplete. The correct full option will be: Is used to determine the proportion of the total variation in the dependet variable (y) explained by the independent variable (x).

Explanation:

To begin with, in the statistics field the term of "regression analysis" refers to the type of method used in order to establish the existing relationship between the variables in the chart. Moreover, the "coefficient of determination" consists of a statistic used whose main purpose focus on the prediction of possible future outcomes or either the testing of a hypothesis which the scientits are working on. That is why that this last tool uses the independent variable in order to explain the proportion of the total variation of the dependent variable.

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