What is the term for the process of reducing the dimensionality of data while retaining its most important features?

What is the process of gathering data from various sources and storing it for analysis known as?

A. Data Wrangling

B. Data Collection

C. Data Visualization

D. Data Aggregation

Which of the following is NOT a common source of data for data collection in Data Science?

A. Social Media

B. Sensor Data

C. Print Media

D. Customer Surveys

In data collection, what is the term for the process of recording data in its original form without any changes?

A. Data Integration

B. Data Transformation

C. Data Aggregation

D. Raw Data Collection

Which of the following is a type of structured data that is organized in rows and columns, similar to a spreadsheet?

A. CSV

B. JSON

C. XML

D. Unstructured Text Data