Explain two sources of statistical data?

1. Surveys: Surveys are a common source of statistical data, where researchers collect information from a sample of individuals or organizations to make inferences about a larger population. Surveys can be conducted through various methods such as online questionnaires, phone interviews, or in-person interviews. The data collected from surveys can provide valuable insights into people's opinions, behaviors, and characteristics.

2. Administrative records: Administrative records are another important source of statistical data, which are collected by government agencies, organizations, or businesses for administrative purposes. These records can include information on demographics, employment, education, healthcare, and other aspects of society. By analyzing administrative records, researchers can gain a better understanding of trends and patterns in various sectors of the economy and society.

1. Census Data

- Census: A comprehensive count of a population, usually conducted at regular intervals (e.g., every 10 years).
- Provides data on: Demographic characteristics (age, gender, race, ethnicity), household composition, income, education, employment, etc.
- Advantages: Comprehensive coverage, reliable data sources, used for planning government policies and allocating resources.

2. Surveys

- Surveys: Collect data from a sample of the population to make inferences about the entire population.
- Types of surveys:
- Cross-sectional: Collect data at a single point in time.
- Longitudinal: Collect data over a period of time, allowing for the study of changes and trends.
- Provides data on: Specific topics of interest (e.g., public opinion, health, consumer behavior), not easily obtainable through other sources.
- Advantages: Can target specific populations, provide detailed information, and measure change over time.