Statistics Basics Overview

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Questions and Answers

What distinguishes primary data from secondary data?

Primary data is always more reliable than secondary data.

Secondary data is collected in organized experiments.

Secondary data is collected through personal interviews.

Primary data is collected by an investigator for the first time. (correct)

Which of the following is NOT a source of statistical data?

Publications

Private conversations (correct)

Sample surveys and censuses

Administrative activity records

Which method involves face-to-face conversation to collect information?

Sample survey

Administrative data collection

Interview method (correct)

Internet sources

What is a characteristic of secondary data?

It has been collected for a purpose different from the current analysis. Signup and view all the answers

Which source of data is considered most reliable in Nigeria?

Administrative sources Signup and view all the answers

In which method is a representative fraction of the population inspected?

Sample technique Signup and view all the answers

Which of the following would NOT be considered an organized experiment?

Spontaneous observations Signup and view all the answers

What is NOT a common administrative activity that generates data?

Interpersonal communication Signup and view all the answers

What defines statistical data?

A set of numerical information about a certain individual or object needed for analysis. Signup and view all the answers

Which characteristic is true about primary data?

It is collected specifically for the first time by an investigator. Signup and view all the answers

How does a sample survey differ from a census?

A sample survey examines only a selected part of the population. Signup and view all the answers

What is an example of secondary data?

Data published from previously conducted studies. Signup and view all the answers

Which of the following is considered an organized method of data collection?

Conducting a structured experiment. Signup and view all the answers

Which source of data is least likely to provide reliability?

Qualitative observations gathered informally. Signup and view all the answers

What is the primary advantage of using administrative activity records as a data source?

They are a by-product of regular administrative operations. Signup and view all the answers

What setting does the interview method primarily require?

A direct conversation between interviewer and respondent. Signup and view all the answers

Study Notes

Statistics

Statistics is the science of dealing with the organization, analysis, and interpretation of statistical data.
Data refers to a set of information about certain individuals or objects needed to carry out research or tasks.
Statistical data is a set of numerical information about certain individuals or objects needed for statistical analysis.

Types of Data

Primary Data: Data originally collected by an agency or investigator for the first time for analysis.
Secondary Data: Data that has already been collected and processed by others, and used by another person or agency for their statistical work.

Sources of Data

Organized Experiment: Data collected through experiments or by specialists who publish their findings.
Individual Research: Data collected by researchers for scientific or fact-finding investigations.
Sample Surveys and Censuses: Involves inspecting a representative fraction of a population to draw conclusions about the entire population.

Data Collection Methods

Administrative Records: Data collected as a byproduct of routine administrative activities (birth records, hospital reports, etc.)
Publications: Data collected from published sources like books, journals, and literature.
Internet: Data gathered from online sources.
Statistical Bulletins: Data collected from government or other statistical publications.
Federal/National Offices of Statistics: Data obtained from government agencies responsible for statistics.
Interviews: Data collection method involving direct interaction between an interviewer and respondent.
Telephone Interviews: Interviews conducted using a telephone.
Questionnaire: A set of prepared questions mailed for responses.
Observation: Data collected by directly observing events as they happen.

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Description

This quiz covers the fundamentals of statistics, including types of data such as primary and secondary data. It also explores various sources of data collection, like organized experiments and surveys. Test your knowledge on these essential statistical concepts!