What index is used to measure the average prices paid by a typical family? An average of the prices of the goods and services purchased by a typical family is the: OA. inflation rate index. OB. producer price index (PPI). c. consumer price index (CPI). OD. aggregate price level index. Suppose the economy's consumer price index (CPI) in 2008 was 187 and the CPI in 2009 was 195. The inflation rate over the period from 2008-2009 was equal to %. (Enter your response rounded to one decimal plac