STATS MMW

Elements of stats (CPAI)

• COLLECTION

• PRESENTATION

• ANALYSIS

• INTERPRETATION

gathering of quantitative & qualitative information

COLLECTION

organizing the data obtained through tabular, graphical or textual methods

PRESENTATION

extracting relevant information

ANALYSIS

drawing conclusion

INTERPRETATION

Methods in gathering data (5, DIREO)

• Direct

• Indirect

• Registration

• Experiments

• Observation

obtained through interview.

Direct

data are taken through questionnaires, survey, on-line polls

Indirect

obtained through listing that are mandated by government or companies.

Registration

obtained by watching or actual surveillance

Observation

Kinds of Statistics (2)

Descriptive and Inferential

gives information or description of the sample

Descriptive

draws conclusions

Inferential

Types of Data (2)

Qualitative & Quantitative

Types of Variables

Discrete & Continuous

Data that are in characteristic in nature

Qualitative

Data that are numeric in form

Quantitative

values that are countable,limited to whole numbers

Discrete

variables obtained through measurements

Continuous

characteristic of a population

Parameter

characteristic of a sample

Statistics