a. The Consumer Price Index (CPI) is an index that measures changes in the average prices for consumer goods and services. Explain why CPI is not a perfect measure of inflation. b. Suppose the Australian Bureau of Statistics in 2021 reported as follows: -The Armed forces, children below 15 years, the disabled and retired population were 12.2 million of the Australian population -Total population: 26.6 million -Adult Australians employed: 13.6 million Based on this information, answer the questions below

i. Calculate Australia's labour force in 2021

ii. Calculate Australia's unemployment rate in 2021

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