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Variation Of Life Expectancy

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Introduction

One interesting question in mind is, “How long can I live?” Knowing how long one can live, or at least have an idea about it may change people’s way of living. People nowadays have grown more conscious of their health, the environment their living in and their lifestyle.
According to Max Roser, life expectancy has increased rapidly since the Enlightenment. In a pre-modern poor world, life expectancy was around 30 years in all regions of the world. In the early century, life expectancy started to increase in the early industrialized countries while it stayed low in the rest of the world. Over the last decades, global inequality of life expectancy has decreased. Since 1900, the global average life expectancy has more than doubled, and is now approaching 70 years.
Life expectancy refers to the number of years a person is expected to live base on the statistical average. It differs by geographical area, and depends on several variables such as gender, lifestyle, access to healthcare, economic growth rate, environment, etc. The concept of life expectancy has been used in different fields such as plant or animal ecology, and actuarial science.
This project aims to determine the factors that could mostly explain the variation of life expectancy per country through regression analysis. The explanatory variables considered are real GDP growth rate, health care index, pollution index, traffic index, literacy rate and gender. The response variable is the actual

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