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Statistics: Chapter 1 by Mind Map: Statistics: Chapter 1
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Statistics: Chapter 1

It can be used to tell a story, such as, does Aspirin cause heart attacks?

Opens doors to knowledge

It makes logical sense of numbers by organizing them in an easy-to-read way

May suprise you by being fun

What is Statistics?

Statistics is a collection of procedures and principles for gathering data and analyzing information to help make decisions when faced with uncertainty.  

Principles & Procedures for collecting & studying data to make decisions

Morals

Simple Summaries

Easier to digest than long lists.

Median

Lower Quartile

Upper Quartile

Representative Sample

Population

Random Sample

Sample Survey

Margin of Error

Unrepresentative Sample

Non Response Bias

Self-Selected (Volunteer) Sample

Observational Study

Cause and Effect conclusions not generally made.

Variable

Confounding Variable

Randomized Experiments

Cause and effect conclusions usually made

Treatment

Random Assignment

Placebo

Statistical Significance

Rate and Risk

When discussing change in rate and risk, be sure to mention baseline.

Base (Baseline) Risk

Statistical Significance vs Practical Importance

Statistical significance not always practically important.  Be sure to find out the magnitude of the relationship or difference.

Discovery of Knowledge

Ask the Right ?'s

Collect Useful Data

Summarize and Analyze Data

Make Decisions and Generalizations

Turn Data and Decisions into Knowledge