BUSN 5000 Exam 1 || Verified for Accuracy.
Data correct answers - Any collection of discrete symbols that convey information
- Plural form of "datum"
- Structured or unstructured
Datum correct answers Singular form of "data"
Structured Data correct answers - Organized in a table of records and fields
- Stored in data warehouses using predefined data model and format
Unstructured Data correct answers - Text, image, video files
- Stored in data lakes in their raw form
Data Set correct answers - Made up of records that contain information on a specific entity (e.g.
a person)
- May comprise multiple data tables structured for a particular analysis.
- When a single table, can also be called a "data table"
Unit of Record correct answers Type of entity to which the records in a data set correspond
Records correct answers Each record is made up of a set of known fields that contain
measurements of known types (race, gender, age)
Observation correct answers - "record"
- remember, indicated by subscript i
Variable correct answers "field"
, Observation Index "i" correct answers values run from 1 to however many observations in a data
set or "N"
Tabular Data correct answers Data that can be organized into a single data table
"Tidy" Data correct answers 1. Each variable corresponds to a column
2. Each observation corresponds to a row
3. Every entry (cell) corresponds to a single value
Cross Section correct answers - many units observed at once
- order of observations don't matter
- CPS
Time Series correct answers - single unit observed over multiple time periods
- order matters
- FRED labor force participation rate
Panel correct answers - same units observed over multiple time periods
- order matters within unit
- National Longitudinal Study of Young Men (NLSYM)
Database correct answers - Collection of tables where each table has some known and
meaningful relationship with other tables.
- Managed with database management system (DBMS) --> MySQL
Big Data correct answers Volume, Velocity, Variety, Veracity
Data correct answers - Any collection of discrete symbols that convey information
- Plural form of "datum"
- Structured or unstructured
Datum correct answers Singular form of "data"
Structured Data correct answers - Organized in a table of records and fields
- Stored in data warehouses using predefined data model and format
Unstructured Data correct answers - Text, image, video files
- Stored in data lakes in their raw form
Data Set correct answers - Made up of records that contain information on a specific entity (e.g.
a person)
- May comprise multiple data tables structured for a particular analysis.
- When a single table, can also be called a "data table"
Unit of Record correct answers Type of entity to which the records in a data set correspond
Records correct answers Each record is made up of a set of known fields that contain
measurements of known types (race, gender, age)
Observation correct answers - "record"
- remember, indicated by subscript i
Variable correct answers "field"
, Observation Index "i" correct answers values run from 1 to however many observations in a data
set or "N"
Tabular Data correct answers Data that can be organized into a single data table
"Tidy" Data correct answers 1. Each variable corresponds to a column
2. Each observation corresponds to a row
3. Every entry (cell) corresponds to a single value
Cross Section correct answers - many units observed at once
- order of observations don't matter
- CPS
Time Series correct answers - single unit observed over multiple time periods
- order matters
- FRED labor force participation rate
Panel correct answers - same units observed over multiple time periods
- order matters within unit
- National Longitudinal Study of Young Men (NLSYM)
Database correct answers - Collection of tables where each table has some known and
meaningful relationship with other tables.
- Managed with database management system (DBMS) --> MySQL
Big Data correct answers Volume, Velocity, Variety, Veracity
