BASIC STATISTIC AND DATA COLLECTION

Statiscal data

Statistics

Descriptive statistic

Inferential statistic

Primary : direct from observation unit

Secondary : collected data

Tertiary : grouped/processed data

Analyzer equipment : balance, pH meter,
thermometer etc

Sensory Observation : behavior, VDO,
camera, AV etc

Questionnaire : text, figure (direct interview/
phone, post, mail etc)

Data collection

Data variable

Qualitative : nominal scale / ordinal

Nominal Scale
(Classification)
- Sex
- Blood

Ordinal Scale
(Ranking)
- Satisfy
- Pain

Quantitative : interval / ratio

Interval Scale
Temperature
- I.Q

Ratio Scale
- Height
- No of children

Data presentation

Statistical analysis

Statistical interpretation

Census : all observation unit

Sample survey : partial of population,
represent the population

Reporting

Registration : to update for some item of data by
continuously collect