Nalysis about patterns and trends from data sets

Please read through each question and finish question 6. I had finished question 1 to 4 already.

I am not sure if I need to write down anything about question 5. If you think that is needed, please write that as well.

Added on 10.05.2015 03:08
I listed each website that I used in question 1 to 4. Please reference them as well. Thank you!