Biostatistics.docx

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SCALES Nominal The order of

Ordinal

Interval

Ratio















values is known Can quantify the difference between each value Can add or subtract values 

Can multiply or divide values



Has true zero

MEASURE OF CENTRAL TENDENCY AND DISPERSION Nominal

Ordinal

Interval





















Mean





Standard





Variance





Minimum Value





Maximum Value





Percentile





Frequency Median Mode



Ratio

Deviation

TYPE OF DATA

Qualitative Data

Nominal

Ordinal





Interval

Ratio

Type Quantitative Data Type





CHARTS/ PLOTS Pie Chart





Simple Bar Chart





Multiple Bar





Chart Histogram





Box Plot





EXAMPLES Examples

Gender

QEC evaluation

Temperature

Income

Hair Colours

Social Class

GPA

No. of Purchases

Place where you

Qualification

Time

Age, Weight,

live Religion

Height Likert Scale

Rainfall

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