CPI Practice AP Macroeconomics

The video tutorial explains the concept of the Consumer Price Index (CPI) and how it measures inflation by comparing the cost of a Market Basket over different years. It provides a step-by-step guide to calculating CPI using different base years (2009, 2010, and 2011) and explains how to interpret the results. The tutorial emphasizes understanding the Market Basket and its role in determining price changes over time.

What is the primary purpose of the Consumer Price Index (CPI)?

• To track changes in the cost of living over time

• To measure the economic growth of a country

• To calculate the GDP of a nation

• To determine the unemployment rate

How is the Market Basket used in calculating the CPI?

• It is a collection of goods and services whose prices are tracked over time

• It is a list of luxury items that are excluded from inflation calculations

• It is a set of financial assets used to measure economic stability

• It is a group of services provided by the government

If the CPI for a given year is 200, what does this indicate about prices compared to the base year?

• Prices have doubled

• Prices have remained the same

• Prices have decreased by 50%

• Prices have increased by 200%

When calculating the CPI, what does a value of 100 signify?

• Prices have increased by 100%

• Prices have decreased by 100%

• Prices have doubled since the base year

• Prices are the same as the base year

If the CPI is calculated to be 80 for a certain year, what does this imply about prices compared to the base year?

• Prices are 20% higher than the base year

• Prices are 20% lower than the base year

• Prices have remained unchanged

• Prices have doubled since the base year