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Statistics (Qualitative (categorical) (Binary (dichotomous)
2 categories…
Statistics
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Quantitative (numerical)
Continuous (measurable)
- on a continuous scale - like BP
Discrete (countable)
- Limited number - whole number
like number of children in a family
Shown using numbers - measures of central tendency and variation
Using graphs and tables - histograms and frequency
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Methods
Descriptive
- Summarises a given data set
- Graphically or numerically
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Variable - characteristics of individuals, objects etc.
Observation = data - outcome/value of the measurement
Ordered Array
- Hidden in unorganised raw data
- ordered in increasing magnitude, lowest to highest
- can get a feel for the observations
Can summarise data into class intervals
- has lower and upper limit
- too many intervals defeats the purpose