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5 votes

Regression: negative intercept with only positive values

The answer here is likely to be very simple. The intercept is the predicted outcome when all the predictors are zero. Quite often that point is not only not within the range of the data, but also not ...
Nick Cox's user avatar
  • 58k
3 votes

Regression: negative intercept with only positive values

You would interpret them the same way you interpret any regression results. Although you haven't given us a lot of details, there is nothing really surprising in what you have told us. It would ...
Peter Flom's user avatar
  • 124k
1 vote

Variance of a bounded random variable

Wait, there is a two liner. Without loss of generality $\mathbb{E}X = 0, X \in [a, b]$. Then $$\left|X - \frac{b + a}{2}\right| \leq \frac{b - a}{2}.$$ Now $${\rm Var}(X) = {\rm Var}\left(X - \frac{b +...
Ambar's user avatar
  • 11

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