Statistics.

Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, and presentation of data. It is used to make inferences about populations based on samples. Statistics can be used in a wide variety of fields, including business, economics, medicine, social sciences, and engineering.

Here are some of the key concepts in statistics:

• Data: This is the raw information that is collected. Data can be quantitative (numbers) or qualitative (categories).
• Population: This is the entire group of individuals or objects that we are interested in.
• Sample: This is a subset of the population that we use to collect data.
• Descriptive statistics: This is used to summarize data and describe the population. Descriptive statistics can be presented in tables, graphs, or numerical summaries.
• Inferential statistics: This is used to make inferences about the population based on the sample. Inferential statistics can be used to test hypotheses, estimate population parameters, and make predictions.

Here are some examples of how statistics is used in the real world:

• A company might use statistics to track sales data and forecast future sales.
• A doctor might use statistics to determine the effectiveness of a new drug.
• A government might use statistics to track unemployment rates and inflation.
• A social scientist might use statistics to study the relationship between poverty and crime.
• An engineer might use statistics to design a new product or process.

Statistics is a powerful tool that can be used to make informed decisions about a wide range of topics. If you are interested in learning more about statistics, there are many resources available online and in libraries.

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Here’s a list of reliable statistics websites from various regions around the world, covering a wide range of topics:

Global

1. World Bank Data: data.worldbank.org
2. International Monetary Fund (IMF) Data: imf.org/en/Data
3. United Nations Data: data.un.org
4. OECD Data: data.oecd.org
5. World Health Organization (WHO) Data: who.int/data
6. International Labour Organization (ILO) Statistics: ilo.org/stat
7. UNESCO Institute for Statistics: uis.unesco.org
8. Food and Agriculture Organization (FAO) Statistics: fao.org/statistics

North America

1. U.S. Census Bureau: census.gov
2. Bureau of Labor Statistics (BLS): bls.gov
3. Statistics Canada: statcan.gc.ca
4. National Center for Health Statistics (NCHS): cdc.gov/nchs
5. Pew Research Center: pewresearch.org

Europe

1. Eurostat: ec.europa.eu/eurostat
2. UK Office for National Statistics (ONS): ons.gov.uk
3. German Federal Statistical Office (Destatis): destatis.de
4. French National Institute of Statistics and Economic Studies (INSEE): insee.fr
5. Statistics Netherlands (CBS): cbs.nl

Asia

1. National Bureau of Statistics of China: stats.gov.cn
2. Japan Statistics Bureau: stat.go.jp
3. Statistics Korea (KOSTAT): kostat.go.kr
4. India Ministry of Statistics and Programme Implementation (MOSPI): mospi.gov.in
5. Singapore Department of Statistics: singstat.gov.sg

South America

1. Brazilian Institute of Geography and Statistics (IBGE): ibge.gov.br
2. National Institute of Statistics and Censuses of Argentina (INDEC): indec.gob.ar
3. National Administrative Department of Statistics (DANE), Colombia: dane.gov.co
4. National Institute of Statistics of Chile (INE): ine.cl

Africa

1. Statistics South Africa: statssa.gov.za
2. Kenya National Bureau of Statistics (KNBS): knbs.or.ke
3. National Institute of Statistics of Rwanda (NISR): statistics.gov.rw
4. Ghana Statistical Service (GSS): statsghana.gov.gh

Oceania

1. Australian Bureau of Statistics (ABS): abs.gov.au
2. Statistics New Zealand (Stats NZ): stats.govt.nz

These websites provide a wealth of statistical data covering economics, health, population, environment, and more.