The correct formula for measuring the GDP is C + I + G +NX. Here, C stands for consumption, I stands for investment, G stands for Government spending and NX stands for Net Exports.
GDP stands for Gross Domestic Product. It is the sum total amount of all the Goods and Services produced in a country in a specific period of time.
The calculation (C + I + G + NX) of the expenditure done by the government and private individuals in their own country along with net exports gives us the total GDP of a country.
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