The primary World Bank collection of development indicators, compiled from officially-recognized international sources. It presents the most current and accurate global development data available, and includes national, regional and global estimates.
From probably the largest and most well known source of tutorials on the web. Sal Khan's lessons can teach you all the technical material you need from the basics to very advanced. Recommended!
Measures of central tendency
This is the foundational tutorial for the rest of statistics. We start thinking about how you can represent a set of numbers with one number that somehow represents the "center". We then talk about the differences between populations, samples, parameters and statistics.
Although the world witnessed an unprecedented pace of poverty reduction over the last decades, reducing the number of people living in extreme poverty by more than 700 million, approximately 1.2 billion people remained entrenched in destitution in 2010.1
ping world has already attained the first Millennium Development Goal target—to cut the 1990 poverty rate in half by 2015. The 1990 extreme poverty rate – $1.25 a day in 2005 prices – was halved in 2010, according to estimates
The develo
According to these estimates, 21 percent of people in the developing world lived at or below $1.25 a day. That’s down from 43 percent in 1990 and 52 percent in 1981.
This means that 1.22 billion people lived on less than $1.25 a day in 2010, compared with 1.91 billion in 1990, and 1.94 billion in 1981.