Data Handling
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Short Answer Questions(SAQs)
What is data handling?
Data handling refers to the process of gathering, recording and presenting information in a way that is helpful to others (graphs, charts).
What are some of the real life examples where data handling is used?
- National Census
- Voter polls
- Online market surveys
What is a pictograph?
A pictograph is a graphic symbol that conveys its meaning through its pictorial resemblance to a physical object.
MCQs
1. Which of the following represents data in pictures?
(a) Bar graph
(b) Pictograph
(c) Line graph
(d) Pie chart
► (b) Pictograph is a way of representing data using images or symbols.
2. What is the purpose of a bar graph?
(a) To draw pictures
(b) To show percentage
(c) To compare quantities
(d) To write data in tables
► (c) Bar graphs help in comparing quantities across categories using bars of different lengths.
3. Which of these is NOT a method of data handling?
(a) Pictograph
(b) Tables
(c) Multiplication
(d) Bar graph
► (c) Multiplication is an arithmetic operation and not a data handling method.
4. Which graph uses sectors to represent data?
(a) Bar graph
(b) Line graph
(c) Pie chart
(d) Histogram
► (c) Pie charts use circular sectors to represent parts of a whole.
5. Data collected directly is called:
(a) Secondary data
(b) Final data
(c) Primary data
(d) Mixed data
► (c) Primary data is collected directly from the source by the observer.
6. What type of chart would best show changes over time?
(a) Pie chart
(b) Line graph
(c) Bar graph
(d) Pictograph
► (b) Line graphs show trends or changes over time effectively.
7. What is the minimum number of data points needed to draw a line graph?
(a) 1
(b) 2
(c) 3
(d) 0
► (b) At least 2 data points are required to draw a line.
8. Which of these represents information in rows and columns?
(a) Bar graph
(b) Pie chart
(c) Table
(d) Line graph
► (c) Tables arrange data systematically in rows and columns.
9. Tally marks are used for:
(a) Drawing graphs
(b) Marking frequency
(c) Multiplication
(d) Measuring angles
► (b) Tally marks are a simple way of recording frequency counts.
10. Which tool helps to visually compare data categories?
(a) Table
(b) Bar graph
(c) List
(d) Description
► (b) Bar graph helps visualize comparison of quantities across categories.
11. In a pictograph, one image equals:
(a) 1 unit only
(b) Multiple units
(c) No units
(d) Zero
► (b) Each image in a pictograph can represent multiple units based on the key.
12. Which data representation is best for percentage?
(a) Pie chart
(b) Line graph
(c) Tally marks
(d) Table
► (a) Pie charts are ideal to show percentage distribution of a whole.
13. What is the most common use of data in real life?
(a) Watching TV
(b) Making decisions
(c) Running
(d) Playing games
► (b) Data helps in making informed decisions in real-life scenarios.
14. Which of the following shows frequency?
(a) Pie chart
(b) Table
(c) Tally marks
(d) Paragraph
► (c) Tally marks directly represent frequency counts.
15. What is the plural of ‘datum’?
(a) Datas
(b) Dates
(c) Data
(d) Datums
► (c) Data is the plural form of datum in mathematical usage.
16. Which graph shows parts of a whole?
(a) Bar graph
(b) Line graph
(c) Pie chart
(d) Column chart
► (c) Pie charts divide a circle into sectors showing parts of a total.
17. When is a double bar graph used?
(a) Comparing two sets of data
(b) Drawing circles
(c) Showing totals
(d) Tallying
► (a) Double bar graphs are used to compare two sets of data side by side.
18. What does each bar in a bar graph represent?
(a) A line
(b) A picture
(c) A category and its value
(d) A dot
► (c) Each bar in a bar graph represents a category and the value associated with it.