The Consumer Price Index (CPI) Is Calculated by Averaging the Prices

question 41

Multiple Choice

The consumer price index (CPI) is calculated by averaging the prices of various items after assigning a weight to each item. The following table gives the consumer price indexes for selected years from 1940 through 2002, reflecting buying patterns of all urban consumers, with x representing years past 1900. Find an equation that models these data. If it's necessary, round your calculations to four decimal places. ​

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Source: U.S. Bureau of the Census
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Definitions:

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