2) Key Concepts In Statistic Flashcards Preview

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Flashcards in 2) Key Concepts In Statistic Deck (6)
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1
Q

Statistical method

A
  • descriptive: summarize and simplify information
  • Modeling: create models to understand complex relation in data
  • Inference: evaluate precision and generalize results
2
Q

Numerical (quantitative) variables

A
  • continuous: variable can assume any value within an interval (eg: weight)
  • Discrete: Variable can assume integer values (eg: # of previous pregnancies)
3
Q

Categorical (qualitative) values

A
  • Ordinal: categories have a natural order (eg: severity of asthma)
  • Nominal: categories are not ordered (eg: blood type)
4
Q

Descriptive measures

A
  • frequency
  • central tendency and position
  • dispersion
5
Q

Graphs

A
  • used in presentation
  • easy to read but not precise
  • show trends or patterns
6
Q

Table

A
  • employed in written documents

- can present more information and precise value