Final answer:
GDP is the key source for income data collection and economic analysis in a country.
Explanation:
Income data regarding the collection of income is provided by the Gross Domestic Product (GDP). GDP measures the total value of goods and services produced within a country's borders, which in turn reflects the total income generated in the economy. By tracking GDP, policymakers and analysts can assess the economic performance and standard of living in a nation.
Learn more about GDP and income data collection here:
https://brainly.com/question/32119204
