FBISE, NCP & NBF-aligned resources for Classes 9–12
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Computer Chapter 4 : Topic 2.6
Data Processing
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A researcher gathers student attendance by directly observing classes daily. This method of data gathering is called:
Reasoning: Direct observation is a primary data collection method.
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Which step comes immediately after data collection in a standard data science workflow?
Reasoning: After collecting data, it is analyzed to extract meaning.
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A dataset is cleaned before analysis mainly to:
Reasoning: Cleaning ensures accuracy and reliability of analysis.
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Which tool is most suitable for representing data trends visually over time?
Reasoning: Line graphs show changes over time clearly.
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A teacher uses a bar chart to compare marks of students in a class. This is an example of:
Reasoning: Bar charts are used to visually represent comparisons.
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What is the main purpose of data analysis?
Reasoning: Analysis helps discover meaningful insights from data.
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Which of the following is NOT a method of data collection?
Reasoning: Charting is data visualization, not data collection.
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A pie chart is most appropriate for showing:
Reasoning: Pie charts display proportional data.
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A scientist studies temperature data and finds a pattern of increasing values over months. This process is called:
Reasoning: Identifying patterns is part of analysis.
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Which of the following best describes data visualization?
Reasoning: Visualization converts data into visual formats.
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Sensors are commonly used for data collection in:
Reasoning: Sensors automatically collect real-time data.
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Why is data visualization important in data science?
Reasoning: Visualization simplifies interpretation of complex data.
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