I would not say so. It might not be the truth but after that many years, a correlation would be consistent with your data, regardless if the correlation is between another factor or error you have not identified. It might be a coincidence that this correlation is true in real life, but there is a correlation.

There is always exceptions, but this does not disprove my statement. You are trying to use a "deny the consequent," and this only shows it is not correct 100% of the time, and not 100% incorrect. Marijuana is a sedative, you are relaxed and pacified, and majority of Americans, or of those who even smoke marijuana, are not extreme type A personalities where their "relaxed" state is level with a sober non-intoxicated type B. Case-in-point, q.e.d.

That question is irrelevant. There are too many explanations and angles to look at this from, but there is a correlation between the amount of television watched and the level of happiness. That is it. The validity and randomness of the data is what effects the facts; the statistics are really saying "of people who participate in the surveys who watch 20% more t.v. are more unhappy."

Weed pacifies your mind, making you content with your current situation. The mind on the drug is happy, not the mind.