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Statistics = procedures & principles for gathering data & analyzing info to help make decisions by Mind Map: Statistics =  procedures & principles for gathering
data & analyzing info to help make decisions
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Statistics = procedures & principles for gathering data & analyzing info to help make decisions

This is just a demo map that you can delete right away, if you feel like it...

Data can be used to make a judgement about a situation

Provides a process of discovery of knowledge

Statistical Principles

A summary is interesting & easy to digest

Include base rate or baseline risk when discussing a change in the rate or risk

A representative sample of only 100's or 1,000's can give accurate info about a larger population

An unrepresentative sample, even if large will not give accurate info about the population

Observational studies can't provide cause & effect conclusions

Randomized experiments can provide cause & effect conclusions

A statistically significant finding may not be important - check the magnitute of the difference

Steps

1. Ask the right questions

2. Collect useful data

How much data?

3. Summarize & analyze data

Goal = to answer question

4. Make decisions & generalizations based on observed data

5. Turn data and subsequent decisions into new knowledge