type of data
Post on 16-Sep-2015
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DESCRIPTION
Type of Data CH
TRANSCRIPT
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Nominal distinct classes, no comparison ex: ethnic group, blood group Ordinal natural / meaningful order ex: tumour staging Continuous measurable variables ex : age, weight, height Discrete countable variables ex: no. of patients, no. of pregnancies
TYPES OF DATA
Numerical / Quantitative
Categorical / Qualitative
Figure / Chart
Figure / Chart
Histogram Boxplot
Frequency Polygon
Steam & Leaf Plot
Types
Types
Statistic
Statistic
Central tendency & Dispersion
- Mean & SD (if NORMALLY DISTRIB.)
- Median & IQR (if skewed)
Discrete
Bar Chart Pie Chart
- Frequency - Relative frequency - Cumulative
frequency
Ordinal
Nominal
Binary
Continuous
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