1. About 5
2. .4
3. .1
4. 49
5. 6 I guess
6. Slightly wired that way, slightly standing all day, and caffine crash.
Just to let you know, depending on what this survey is for...you know the phrase, "Correlation is not causation?". That. A thousand times that. Caffine could lead you to be tired. People who are tired could drink more caffeine. A certain lifestyle could naturally lead to an acceptance of energy drinks and a lack of sleep. Marketing of energy drinks could appeal to people who may be more physically fit, and mask any results. Also, as far as tiredness goes, a person who sleeps 50 hours a week may sleep a little over 7 hours a day, or they may sleep 15 hours on weekends, and 4 hours on week days, and there is a huge difference. And that's to say nothing of selection bias. (You're not surveying a sampling of the general population, your surveying primarily young, tech savvy males interested in gaming who want to respond to your poll.) If this is high school level work, mention all these weaknesses and you might get some extra credit. If its College, your probably looking at some regression analysis, and probably more demographic information, particularly after some research on the causes of tiredness. Can you do an experiment? An experiment would really lend itself to this.