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  3. Exploratory Data Analysis in SQL

Exercise

Summarize the distribution of numeric values

Was 2017 a good or bad year for revenue of Fortune 500 companies? Examine how revenue changed from 2016 to 2017 by first looking at the distribution of revenues_change and then counting companies whose revenue increased.

Instructions 1/3

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  • Use GROUP BY and count() to examine the values of revenues_change.
  • Order the results by revenues_change to see the distribution.