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13 Questions

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UIIC AO Data Analysis Overview

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Questions and Answers

What is the main advantage of using primary data over secondary data?

It is usually less expensive to collect.

It is universally applicable to various research questions.

It ensures reliability and specificity for research needs. (correct)

It provides broader context and historical insights.

Which of the following statements about secondary data is true?

It is gathered directly from the source for specific research questions.

It is always more accurate than primary data.

It is primarily collected through surveys.

It provides insights from existing records that were collected for different purposes. (correct)

In terms of data collection methods, which of the following is not a typical source of primary data?

Experiments

Observations

Surveys

Reports (correct)

Why is secondary data often considered less reliable than primary data?

It may not always be specific to the current research question. Signup and view all the answers

Which statement best describes the role of understanding primary and secondary data in data analysis?

It establishes the foundation for data collection, organization, and utilization. Signup and view all the answers

What is the primary role of data in various fields?

To serve as the foundational element for information processing and decision-making Signup and view all the answers

Which of the following is an example of structured data?

Data in a relational database Signup and view all the answers

What characterizes unstructured data?

It lacks a specific format or organization Signup and view all the answers

Which data type can be described as partially organized?

Semi-structured data Signup and view all the answers

Which of the following formats is an example of semi-structured data?

JSON (JavaScript Object Notation) Signup and view all the answers

What is one of the challenges associated with unstructured data?

It often requires advanced techniques for analysis Signup and view all the answers

Which of the following best describes structured data?

Data organized into a predefined format for analysis Signup and view all the answers

Which option does NOT classify as unstructured data?

A spreadsheet with organized data Signup and view all the answers

Study Notes

UIIC AO (Data Analytical Specialists)

Data is raw facts and figures used for reference or analysis.
Data is crucial for information processing and decision-making.
Data types include structured, unstructured, and semi-structured.
Structured data is organized in rows and columns (databases, spreadsheets).
Unstructured data lacks a specific format (text, images, videos).
Semi-structured data has some organization but not in tables (JSON, XML).
Data sources are primary (collected directly) and secondary (existing records).
Primary data is more reliable, specific to research.
Secondary data provides broader context and historical insights.

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Description

Explore the fundamental concepts of data analysis crucial for the role of Data Analytical Specialists at UIIC AO. This quiz covers the types of data, including structured, unstructured, and semi-structured data, as well as the differences between primary and secondary data sources. Test your knowledge on how data impacts decision-making processes.