Final answer:
Gross Domestic Product (GDP) is the value of all final goods and services produced in a nation in a year. Real GDP is the measure of GDP adjusted for price changes, providing a more accurate comparison of economic output over time. It is calculated by valuing the production of final goods and services in the economy in current prices.
Step-by-step explanation:
Gross Domestic Product (GDP) is the value of all final goods and services produced in a nation in a year. It is a measure of a country's economic output and is expressed in dollar terms. Real GDP refers to GDP adjusted for price changes, allowing for a comparison of output over time by removing the impact of inflation. It is calculated by valuing the production of final goods and services in the economy in current prices.a