Data Handling

What is data?

• g) A database of images and videos
• b) A collection of numbers gathered to give information
• e) A collection of random letters
• f) A series of unrelated facts

What is the most efficient way to organize data?

• e) Storing it in a notebook

• b) Using tally marks or tables
• f) Storing it in a cloud service
• g) Memorizing the data

What is the primary purpose of a pictograph?

• To replace bar graphs

• To provide detailed textual explanation

• To illustrate artistic concepts

• To visually represent data using pictures

How many tally marks represent the number 7?

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If each symbol in a pictograph represents 10 students, how many students are represented by 3 symbols?

• 15
• 25
• 35
• c) 30

What is the best way to represent large sets of numerical data?

• Creating bar graphs

• Memorizing the numbers

• Writing the data in words

• Displaying data as text

Which of these is a feature of a bar graph?

• It contains bars of different width

• It is always horizontal

• It uses pie charts

• It has equal spacing between bars

In a pictograph, what does one half of a symbol usually represent?

• One quarter of the assigned value

• A value that is not represented

• Half of the assigned value

• The same value as two full symbols

How do we decide the height of a bar in a bar graph?

• Based on personal preference
• By following a standard height for all bars
• According to the color of the bars
• b) Based on the data value

If a bar graph shows that one bar is twice the height of another, what does it mean?

• The bars represent unrelated data
• The shorter bar is twice the value
• The taller bar represents twice the value
• The taller bar represents half the value