Data comes from you or from other sources.
If it comes from you, it is from your life, or the numbers you decide to collect in order to study them more closely. Examples include:
- What are my finishing times in 5K races over the last five years?
- I am conducting a poll of where people like to go to eat in Charleston.
Data that comes from outside sources can be given to you, downloaded from the web, or harvested from a source. Examples include:
- What is the educational attainment of people in my neighborhood? (reported in the Census)
- Your boss wants to know how many people in your company’s database live in the 29414 area. (She gives you access to the company database)