TY  - JOUR
T1  - Study the Differentials, Patterns, Trends and Mathematical Modeling of Expectation of Life (Ex) of Bangladesh
AU - , Md. Rafiqul Islam 
JO  - Pakistan Journal of Social Sciences
VL  - 3
IS  - 8
SP  - 1060
EP  - 1064
PY  - 2005
DA  - 2001/08/19
SN  - 1683-8831
DO  - pjssci.2005.1060.1064
UR  - https://makhillpublications.co/view-article.php?doi=pjssci.2005.1060.1064
KW  - Expectation of life (ex)
KW  -mathematical modeling
KW  -coefficient of determination (R2 )
KW  -cross-validity prediction power (CVPP)
KW  -F-test
AB  - The purpose of the present study is to study the differentials, patterns and trends of expectation of life (ex) of Bangladesh during 1961-1991. For this, the expectation of life (ex) of Bangladesh in the census years 1961, 1974, 1981 and 1991 have been used in this study. A few mathematical models have been fitted to ex and f(x)=x+ex only for male of Bangladesh in 1961 and it is found that they follow polynomial models. The Cross-Validity Prediction Power (CVPP) and F-test are also applied to these models to check the validity and significance of the models.
ER  -