Consumption status of rural China is briefly described. Basic ideas and analysis steps of Gray Correlation Degree Analysis are introduced. Based on the gray correlation degree between farmers’ consumption and 8 items of basic living consumption expenditures, both macroscopic and...

We give two refinements to the Chernoff bound for the sum of nonidentical Bernoulli random variables with parameters pi, where 0pi1 and i=1,...,n. Traditionally, the Chernoff bound is a function of the arithmetic mean of the pi's, . The refined bounds contain the term , and hence, are able to...