Colon polyp facts. 1  Colon polyps are growths on the inner lining of the colon and are very common. 2  Colon polyps are important because they may be, or may become malignant (cancerous).  Changes in the genetic material of cells lining the colon are the cause of polyps.
DEFINITION of 'Consumer Price Index-CPI'. A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food and medical care. The CPI is calculated by taking price changes for each item in the predetermined basket of goods and averaging them; the goods are weighted according to their importance.
A consumer price index (CPI) measures changes in the price level of a market basket of consumer goods and services purchased by households.The CPI is a statistical estimate constructed using the prices of a sample of representative items whose prices are collected periodically. consumer price index (CPI) measures changes in the price level of a market basket of consumer goods and services purchased by households.