Tables, graphs, means, medians and standard deviations

What this note covers

1. Identify what kind of data were collected
2. Construct tables that expose the evidence
3. Select a graph that fits the variables
4. Calculate and compare mean and median
5. Interpret standard deviation and group overlap
6. Describe patterns and justify bounded conclusions
7. A descriptive-statistics worked example
8. Reading a graph as evidence

8 sections · 10 key terms & formulas · 6 common mistakes