In a simple regression analysis (where y is a dependent and x an independent variable), if the y-intercept is?

there is a positive correlation between x and y.

there is a negative correlation between x and y

if x is increased, y must also increase.

None of these answers is correct.

1 Answer

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  • Dan
    Lv 5
    1 decade ago
    Favorite Answer

    The question isn;t clear, but the y-intercept (sometimes called alpha, beta0,) is a constant in the linear model and estimated by the arithmatic mean of all the y values for a given sample.

    Thus it tells nothing of the relationship between x and y, so none of the above must be correct.

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