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Punjab (PTB) · Chapter test · Free

9th Class Computer Chapter 6 TestDATA SCIENCE AND DATA GATHERING

30 marks · 40 minutes · 21 questions. Covers: CHAP 6: DATA SCIENCE AND DATA GATHERING.

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9th Class Computer Chapter 6 Test

9th Class · Computer · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. Qualitative data describes:

    1. Quantity

    2. Numbers only

    3. Characteristics

    4. Calculations

  2. Data used to categorize opinions, behaviors, experiences is:

    1. Quantitative

    2. Qualitative

    3. Measurable

    4. Countable

  3. Well-organized data helps to reduce:

    1. Storage

    2. Errors

    3. Computers

    4. Internet speed

  4. Main difference between structured and unstructured data is:

    1. Size only

    2. Format and organization

    3. Color only

    4. Speed only

  5. Which is NOT a benefit of organizing data?

    1. Saves time

    2. Improves clarity

    3. Makes analysis harder

    4. Easier to find and analyze

  6. Surveys collect information by:

    1. Watching activities

    2. Asking questions

    3. Observing people

    4. Reading books

  7. Which of the following is an example of quantitative data?

    1.  Gender of students

    2. Colours of cars

    3. Students height in centimeters

    4. Name of books

  8. Mathematics and Statistics are used for:

    1. Drawing pictures

    2. Finding patterns

    3. Analysing data 

    4. Both b and c

  9.  Enhanced productivity means the project gets done:

    1. Slower

    2. Never

    3. Faster

    4. With errors only

  10. Cloud storage evolution helps store:

    1. Documents, photos, and videos online

    2. Only text

    3. Only viruses

    4. Nothing

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. What are the two main categories of data?

  2. Describe what a line graph is used for and provide an example of data that could be displayed using a line graph.

  3. What question does quantitative data answer?

  4. Differentiate between bar chart and pie chart.

  5. How are questionnaires different from interviews?

  6. Name three problems that backups can protect against.

  7. What happens if you don’t create backup of important school project?

  8. What is remote access?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. What are data validation and data cleaning? Explain validating completeness, validating accuracy, and techniques used for handling missing data and outliers.

  2. Define qualitative data. Explain the key characteristics of qualitative data with examples. 

  3. Describe the importance of organizing and analyzing data? Give example to explain how data can be organized?