Week 1

Uses of Statistics

Descriptive

Inference

Relationships and Predictions

General Terminology

Population

Sample

Random Sampling

Variable

Levels of Measurement

Nominal

Ordinal

Interval

Ratio

Discrete verses Continuous Measurement

Frequency Distributions

Regular

Cumulative

Grouped

Rules for setting up class intervals

Procedural steps for setting up intervals

Score intervals verses exact intervals

Dealing with decimal numbers

Cumulative Frequency Distributions for Grouped Data

Relative

Graphic Representations of Data

Bar Graph

Histogram

Frequency Polygon

Types (normal, J-shaped, etc)

Symmetry