Question

Given the following computer output, select the correct least-squares regression line:

Answer 1

The correct form of the regression line is $\log time = 0.699 + 0.500\cdot \log length$ (Correct choice: D).

According to the information presented in the figure, we know the following function:

1. The independent variable is 'length'.
2. The dependent variable is 'time'.
3. The regression line is of the form: $\ln y = A + B\cdot \ln x$.

Hence, the correct form of the regression line is:

$\log time = 0.699 + 0.500\cdot \log length$ (Correct choice: D)

The correct form of the regression line is $\log time = 0.699 + 0.500\cdot \log length$ (Correct choice: D).

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