FUNDAMENTALS OF STATISTIC

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Measures of Central Tendency

Measure of Dispersion

FUNDAMENTALS OF STATISTIC

Accuracy and Precision

Precision : Determined by how reproducible is the measurement value.

Accuracy : Determined how close a measured value to its "true" value.

Types of Frequency Distribution Graphs

OGIVE

POLYGON of DATA

BAR GRAPH

Variance

Standard Deviation

Range,R= Xh-Xl

Histogram

Median

Subtopic

Mode=greatest frequency

Mean

Normal Distribution

Types of Data

Variable

Discrete vs Continuous

Continuous

any numeric value

information that can be measured on a continuum or scale

Discrete

based on count

information that can be categorized into a classification

Quantitative data

Measurement information

Attribute

Good/Bad

Qualitative data

binary in nature

Statistic

make informed decisions

understand statistical techniques underlying decisions that effects our lives and well- being

organize numerical information in the form of table,graphs, and charts;

A set of concepts,rules, and proscedures that help us :