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Across
  1. 3. a process that makes the data uniform without changing its meaning (e.g., replacing all equivalent abbreviations, spellings, and capitalizations with the same word).
  2. 5. choosing a smaller subset of a data set to use for analysis, for example by eliminating / keeping only certain rows in a table
  3. 7. the practice of obtaining input or information from a large number of people via the Internet.
  4. 8. data about data
Down
  1. 1. a relationship between two pieces of data, typically referring to the amount that one varies in relation to the other.
  2. 2. data that does not accurately reflect the full population or phenomenon being studied
  3. 4. scientific research conducted in whole or part by distributed individuals, many of whom may not be scientists, who contribute relevant data to research using their own computing devices.
  4. 6. the collection of facts and patterns extracted from data