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WorksheetsData Collection method and technique
Total questions: 14
Worksheet time: 7mins
Which type of data collection involves collecting data directly from the source and has not been previously collected?
Primary data collection
Secondary data collection
Match the following data collection methods to their tools:
Telephone calls, mail, online platforms
Interview
Face-to-face interviews, telephone calls, online platforms
Surveys and Questionnaires
Video cameras, audio recorders, observational checklists
Observations
Video conferencing software, online domains with visual aids
Focus groups
Which of the following is NOT a primary data collection method?
Interview
Observation
Online databases
Focus groups
Experiments are considered studies where variables are modified to observe the changes in the results.
True
False
Which tool is commonly used for conducting surveys and questionnaires?
Face-to-face interviews
Telephone calls
Online platforms
All of the above
Government records are an example of which type of data collection method?
Primary
Secondary
What are the main fields where machine learning is applied according to the diagram?
Technology, Engineering, Algorithm, Clustering, Computer Science
Biology, Chemistry, Physics, Mathematics, Literature
History, Geography, Politics, Economics, Art
Medicine, Law, Business, Sports, Music
Which of the following best describes 'Data Aggregating'?
Collecting data from different sources and combining them
Storing data in a database
Deleting unnecessary data
Analyzing data with a machine learning model
Data integration combines data from multiple sources and provides a unified view for analysis.
True
False
Match the following terms with their correct definitions:
The process of collecting data from different sources and combining them
Data Aggregating
The process of storing collected data in a target system
Data Ingesting
The process of combining data from multiple sources to provide a unified view
Data Integration
What are the three main types of data in machine learning?
Structured, Unstructured, Semi-structured
Numeric, Text, Image
Raw, Processed, Analyzed
Simple, Complex, Mixed
Which type of data requires additional processing techniques like Natural Language Processing (NLP) to handle and extract key values?
Structured data
Unstructured data
Semi-structured data
Numeric data
Match the following types of data with their characteristics:
Contains elements of both structured and unstructured data
A
Organized in a predefined format
B
Not organized in a predefined format
C
What are the three main methods for data collection in AI/ML projects?
Data acquisition, Data augmentation, Data generation
Data mining, Data processing, Data analysis
Data labeling, Data cleaning, Data storage
Data visualization, Data reporting, Data sharing
