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Questions and Answers
What is the purpose of a caption or box head in a table?
Which type of graph is particularly effective in showcasing changes over time?
What kind of information does a pie chart effectively portray?
What is represented by the length or height of the bars in a bar graph?
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Which type of graph uses rectangles drawn vertically or horizontally for categorical comparisons?
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In a table, what is a preferred note usually placed?
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What indicates whether the data in a table were taken from a publication or supplied by someone?
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Why might readers prefer graphs over statistical tables when seeking data?
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When is the textual form of data presentation considered effective?
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What is NOT one of the essential components of a statistical table?
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Which method is best for presenting qualitative data with minimal numerical information?
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Why is a tabular arrangement often preferred for presenting data?
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What does the body of a statistical table contain?
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What could make the textual presentation of data ineffective?
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Which component of a statistical table serves as its identifier?
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Which of the following is a limitation of using textual data presentation?
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What is the central angle in degrees for the category 'Professional' in the pie chart?
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When calculating the percentage of 'Craftsman', which value is used in the formula?
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Which of the following is the correct formula to find the number of degrees in the central angle of a sector?
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How is the percentage of 'Other' calculated in the pie chart?
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Which category in the table has the highest number of respondents?
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What percentage corresponds to the central angle of 420 degrees?
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Which graph would best represent the percentage of votes received by different candidates?
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Which data collection method would be most appropriate for gathering information on educational attainments of bank managers?
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Study Notes
Data Presentation Methods
-
Textual Form:
- Used for qualitative data or when few numbers are involved.
- Less effective when many numbers are involved as it can be difficult to understand.
- Useful for highlighting specific data requiring emphasis
-
Tabular Form:
- More effective than textual form for comparison and relationships between data.
- Components:
- Table heading: Includes number and title.
- Body: Contains quantitative information.
- Stubs: Classifications or categories on the left describing row data.
- Column Captions: Titles at the top of each column identifying data.
- Optional parts:
- Prefatory note: Below the title.
- Footnotes: Below the bottom line
- Source note: Indicates data origin (publication, individual).
Graphical Form
- Most effective for visually attracting attention and showing comparisons and trends.
- Requires a title.
- Types:
-
Line Graph: Shows changes in values over time.
- Similar to a Cartesian coordinate system.
- Time periods on horizontal axis, values on vertical axis.
- Lines connecting consecutive points indicate value variations.
-
Bar Graph: Uses bars or rectangles (horizontal or vertical) to depict categories.
- Vertical bars often used for chronological comparison.
- Horizontal bars for categorical comparison.
- Bar height/length represents the value of each category.
-
Pie Graph (Pie Chart): Shows relative magnitudes of parts within a whole.
- A circle divided into sectors.
- Sector size proportional to the percentage it represents.
- Formula to calculate sector angle:
No. of degrees = percentage x 3.6(3.6 degrees = 1% of 360 degrees).
-
Line Graph: Shows changes in values over time.
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Description
Test your understanding of various data presentation methods including textual, tabular, and graphical forms. This quiz explores how to effectively convey qualitative and quantitative information using different formats. Discover the components that make up each method and their strengths and weaknesses.
