Вивчаючи статистику

5. Complete the following sentences:

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  You present categorical data by…
  
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  The count, amount, or percentage of responses by category is placed …
  
• 
  Summary tables enable you to …
  
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  The length of each bar represents …
  
• 
  Pie slices represent the count, amount, or percentage of …
  
• 
  You may produce your pie charts using ….
  
• 
  A superimposed plotted line in the Pareto diagram represents …
  
• 
  Pareto diagrams enable you to …
  
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  Cross-classification tables are also known ….
  
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  Each cell in the inner part of the table represents …
  
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  Two-way tables can reveal what combination ….
  

6. Ask 10 general questions to the text.
7 Answer the following questions:

• 
  How do you present categorical data?
  
• 
  What is a summery table?
  
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  What are additional columns for?
  
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  What is a bar chart?
  
• 
  Why is scanning a bar chart easier than scanning a summary table?
  
• 
  What is a pie chart?
  
• 
  How can you produce a pie chart?
  
• 
  How can you produce a pie chart using a protractor?
  
• 
  What is a Pareto diagram?
  
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  What is a two-way cross-classification table?
  
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  What does the simplest two-way table have?
  
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  What do additional rows and columns present?
  

8. Agree or disagree with the following statements. Use the expressions:
That is wrong That is right.
Far from it. I agree with you.
Nothing of the kind Quite right

• 
  Categorical data are presented by sorting responses by categories.
  
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  The count, amount, or percentage of responses by category is placed into a summary table or into one of several forms of charts.
  
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  The summery table is a multicolumn table that presents the count or percentage of responses to two categorical variables.
  
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  Summary tables enable you to see the big picture about a set of data.
  
• 
  A bar chart is a circle chart in which wedge-shaped areas represent the count, amount, or percentage of each category and the entire circle represents the total.
  
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  The Pareto diagram is a chart containing rectangles (“bars”) in which the length of each bar represents the count, amount, or percentage of responses of one category.
  
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  You can produce a pie chart using computers, calculators or a protractor.