The answer to this question is <span>when two variables are correlated, we cannot be sure what is causing the correlation.
For example, let's there is a study that found an increase in consumption in tofu lead to an increase in breast cancer.
Even if it's true that those two really correlated (let's just assume it), we wouldn't be able to know why it is correlated without further researches.</span>
The correct answer is flat affect.
Flat affect refers to a reduction or lack of emotional expression due to conditions such as schizophrenia or depression. Flat affect is characterized by a lack of facial expressions, indifference or apathy in emotionally arousing situations, speaking in a monotone and overall lack of emotional expression.
The answer is “No one is important; they are all nothing.” Granger
is mentioning to the nonexistence of significance most persons have over time
in the outstanding arrangement of things. Each individual's life is just a few
seconds in time and space. He even adds that even pronounced men are sooner or
later forgotten.
only the Gross National Product