INTRODUCTION--Background Before 1950 China had demographic characteristics of a pre- modern society with high dead rates and high fertility rates. this situation produced certain stability in population size or, at least leads to a slow increase After the foundation of The People,s Republic of China in 1949 China entered its demographic transition first dead rates began to fall rapidly and second fertility remained for many years at about an average of six children per woman as a result of this China experienced rapid population growth due to the high number of children born, a sharp decline of baby dead rate 自强不息,厚德载物- E(@Applied Statistics, Group Report ③--自强不息，厚德载物-- IE @Applied Statistics, Group Report 3 INTRODUCTION--Background ◼ Before 1950 China had demographic characteristics of a pre￾modern society with high dead rates and high fertility rates. This situation produced certain stability in population size or, at least, leads to a slow increase. ◼ After the foundation of The People’s Republic of China in 1949, China entered its demographic transition: first dead rates began to fall rapidly and second, fertility remained for many years at about an average of six children per woman. As a result of this China experienced rapid population growth due to the high number of children born, a sharp decline of baby dead rate