Biostatistics: Data Analysis Methods
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Questions and Answers

What should the figures for the items be presented in?

  • Bold font (correct)
  • Regular font
  • Italic font
  • Underlined font

What should be used to indicate the non-availability of data in a table?

  • The word 'none'
  • The number 0
  • 'n.a.' or a minus sign (-) (correct)
  • The phrase 'data not available'

What should the headings in a table generally be written in?

  • Singular form (correct)
  • Abbreviated form
  • Capitalized form
  • Plural form

Where should the stubs be placed in a table with long rows?

<p>At the right hand side of the table (B)</p> Signup and view all the answers

What should be done if some approximate figures have been used in a table?

<p>Mention the extent of approximation (D)</p> Signup and view all the answers

What should be used to indicate the quantity of a variable in a table?

<p>The number 0 (A)</p> Signup and view all the answers

Where should the sources of data for a table be noted?

<p>In a footnote at the bottom of the table (C)</p> Signup and view all the answers

What should be done to determine the ideal size of a table?

<p>Draw a rough draft or sketch to determine the size (B)</p> Signup and view all the answers

What is the main focus of Biostatistics?

<p>Dealing with variation in numerical data (A)</p> Signup and view all the answers

How are 'data' and 'statistics' distinguished in scholarly research?

<p>Data are individual factual pieces, while statistics are the analysis results. (B)</p> Signup and view all the answers

Which statement best describes the applications of Biostatistics in Dentistry?

<p>Assessing oral health of populations (A)</p> Signup and view all the answers

What does the term 'Scope' refer to in the context of Biostatistics?

<p>Collection and analysis of numerical data (D)</p> Signup and view all the answers

In what field is the term 'Statista-Statesman' related to?

<p>Biostatistics (B)</p> Signup and view all the answers

What is the primary purpose of collecting data according to the text?

<p>For analysis and interpretation (A)</p> Signup and view all the answers

Which term best describes 'data'?

<p>'Data' is raw information used for analysis. (B)</p> Signup and view all the answers

What is the key objective of using statistical tools in Biostatistics?

<p>To deal with variation in numerical data for reliable results (B)</p> Signup and view all the answers

Which type of data is characterized by more than two variables with a clearly implied direction but not measured on a scale?

<p>Ordinal data (D)</p> Signup and view all the answers

What kind of data is characterized by binary variables that can only have two values?

<p>Dichotomous data (C)</p> Signup and view all the answers

In the context of variable classification, which type of variable can be manipulated in a study?

<p>Independent variable (D)</p> Signup and view all the answers

Which of the following is an example of dichotomous data?

<p>Gender of the respondents (M/F) (A)</p> Signup and view all the answers

What is the primary reason for the extraction of teeth due to caries?

<p>Periodontitis (D)</p> Signup and view all the answers

Which type of data involves variables that are not rank-ordered but are mutually exclusive categories?

<p>Nominal data (A)</p> Signup and view all the answers

What should be avoided in the heading or sub-headings of a table?

<p>Using abbreviations (A)</p> Signup and view all the answers

Which of the following is NOT a requirement for the size of columns in a table?

<p>Being colorful (D)</p> Signup and view all the answers

What is a key characteristic that a table should have in terms of space usage?

<p>Economy in space (B)</p> Signup and view all the answers

What does a histogram do to organize data points?

<p>Group into user-specified ranges (B)</p> Signup and view all the answers

In which type of graph are data points organized into bars to show frequency or value?

<p>Bar graph (A)</p> Signup and view all the answers

What is the purpose of dividing columns into different sections based on similarities of the data?

<p>To make data comparison easier (A)</p> Signup and view all the answers

What is recommended regarding the use of color in tables?

<p>Use a monochromatic color scheme (C)</p> Signup and view all the answers

What type of graph is suitable for comparing data across different categories?

<p>Bar graph (C)</p> Signup and view all the answers

What type of chart or graph uses icons and images to represent data?

<p>Pictogram or cartogram (C)</p> Signup and view all the answers

Which of the following is NOT a characteristic of a good pie chart?

<p>The slices should overlap to show relationships. (A)</p> Signup and view all the answers

What type of diagram is used to represent geographic data or statistical data over a geographic area?

<p>Map diagram (D)</p> Signup and view all the answers

In the context of data visualization, what does the term 'degree of fluorosis' refer to?

<p>A condition caused by excessive exposure to fluoride (C)</p> Signup and view all the answers

Which of the following statements about pie charts is NOT true?

<p>Pie charts are best used to represent continuous data. (B)</p> Signup and view all the answers

What is the purpose of using a map diagram in data visualization?

<p>To represent geographic data or statistical data over a geographic area (B)</p> Signup and view all the answers

Which of the following is a common use of pictograms or cartograms?

<p>Visualizing data using icons or symbols (C)</p> Signup and view all the answers

In the context of data visualization, what does the term 'fluoride level in water' refer to?

<p>A measure of the concentration of fluoride in water sources (B)</p> Signup and view all the answers

What is the purpose of using a pie diagram in data visualization?

<p>To show the composition of a whole into different parts (A)</p> Signup and view all the answers
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