E-module 3 - Displaying data Flashcards

1
Q

List 6 types of graph and the type of variable x and y would be for each

A

Pie chart - x: categorical y: discrete quantitative
Bar chart - x: categorical or discrete quantitative y: quantitative
Histogram - x: continuous quantitative y: discrete quantitative
Dot-plot - x: categorical y: continuous quantitative
Box and whiskers - x: categorical y: continuous quantitative
Scatter plot - x: continuous quantitative y: continuous quantitative

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2
Q

What are the elements that should be in a good figure or table?

A
  • title
  • labelled axes (with units)
  • legend

may also contain:

  • annotations to describe certain elements
  • asterisks to denote significance
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3
Q

What elements should a good legend contain?

A
  • Title: one sentence either descriptive (stating how the experiment was conducted) or declarative (what the figure shows)
  • Methods: brief sentence about the methods used to generate the figure
  • Results: very brief explanation of findings. P-values and sample size should also be included
  • Definitions: explanations of all the symbols, scale bars, error bars or abbreviations used in the figure.
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4
Q

Which type of graph is used to determine whether a variable is normally distributed?

A

Histogram or Box & whiskers plot

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