Note: This report was updated on Dec. 30, 2015 to reflect the January-July 2015 National Health Interview Survey estimates released on December 1, 2015. Telephone surveys face numerous challenges, but ...

This study looks at how national public opinion polling in the United States changed from 2000 to 2022. It focuses on two aspects: the sample source(s) – that is, where the survey takers came from – ...

Ramesh Kumar, an investigator or "data warrior" as they are better known to the fraternity, braved sub-zero temperatures in a Himalayan village to gather vital data on rural livelihoods. It is on the ...

India's first Prime Minister Jawaharlal Nehru (left) with scientist and statistician PC Mahalanobis Indian data is staring at a credibility crisis with official numbers on a range of subjects - from ...

At an event to commemorate 50 years of the National Sample Survey (NSS) in 2001, the then prime minister Atal Bihari Vajpayee noted that these surveys had contributed “invaluable raw material" to ...

While average monthly per capita expenditure stood at Rs 1,053.64 in rural areas and Rs 1,984.46 in urban India in 2009-10, there remained a huge gap between the incomes of the top and bottom segments ...

This course is compulsory on the BSc in Politics and Data Science. This course is available on the BSc in Accounting and Finance, BSc in Data Science, BSc in Management, BSc in Mathematics, Statistics ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Representative sampling and random sampling ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...