Consider the following table providing the prices for three different brands of chocolate-chip cookies during 2008 to 2009 in a particular country.(Prices are in the country's local currency. ) 
a.Compute the unweighted aggregate price index for 2009,using 2008 as the base year.
b.Interpret the result.
Definitions:
Pap Smear
A screening test for cervical cancer involving the collection of cells from a woman's cervix to detect abnormalities that may indicate precancerous or cancerous conditions.
Common Site
A location or platform shared or widely used by a large number of individuals or entities for a particular purpose or activity.
Cancer
A disease characterized by the uncontrolled growth and spread of abnormal cells that can result from damage to DNA.
Labeled Structures
Specific components within a larger system (biological, chemical, architectural) that have been identified or marked for study or reference.
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