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Descriptive statistics

Qualitative Variables

Nominals

Ordinals

Measure quantities such as gender, religion, stratum.etc

data collection

¿Para qué sirve?

what is it for?

what is it for?what is it for?

Thematic

Hierarchy order

Grouped Data

Ungrouped Data

continuous

Discreet

Frequency based data distribution

Frequency Table

Any kind of value.

Whole numbers only

Numerical Quantities

Quantitative Variables

Both need a table, diagram and conclusions

There is no specific order

Variance: Variety of data according to its average

Range: Difference between maximum and minimum value

Measures of dispersion

Central trend

It allows analyzing data around specific values

Fashion: Higher data frequency

Trend Measures

Average: Average data

Medium: Midpoint of the datas

The variable is used if they are large or continuous values

It is used when they are small or discrete values

Simple probability

Mutual Probability

intersection probability

Probability of the complement

Types

Relationship between event and sample space

Probability

Median deviation: how scattered are the data according to the mean

Types

* Simple bar

* Circular

* Histogram

* Line chart

Diagrams

Conditional Probability