Hi i need help for these two questions, the question requires critique on abs calculation on inflation -1.9% and customer spending(CPI calculation) using illion tracking.

No calculation required for question a i believe.

The graph is the CPI market basket for Australia used by the ABS.

\fInsurance and financial services Education 5.08% Food and non-alcoholic 3.18% beverages 16.84% Recreation and culture 12.56% Alcohol and tobacco Communication 7.07% 3.05% Clothing and footwear 3.98% Transportation 11.55% Health Housing 5.29% 22.30% Furnishings, household equipment and services 9.10%