What is the primary purpose of an Entity-Relationship Diagram (ERD) in data modeling?
A. To visualize the data distribution
B. To represent the structure of a database
C. To calculate summary statistics
D. To display relationships between entities
Answer: Option B
This Question Belongs to Data Science >> Data Modeling
What is the primary goal of data modeling in the context of data science?
A. To collect raw data
B. To predict future data
C. To represent and understand data
D. To clean and preprocess data
A. Data Dictionary
B. Data Flow Diagram (DFD)
C. Entity-Relationship Diagram (ERD)
D. Data Cube
What is the process of transforming raw data into a structured format suitable for analysis called?
A. Data Aggregation
B. Data Wrangling
C. Data Imputation
D. Data Integration
A. Hierarchical Modeling
B. Relational Modeling
C. Object-Oriented Modeling
D. Entity-Relationship Modeling
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