# Summary statistics and confirmation

After the data has been 108.10.20.20 Data Analysis - Clean and map data, we need to confirm that we have data that is understood and useable.

Whenever possible, build checks and balances into the ingestion/cleaning process. Particularly around how we know things make sense. This is critical because if the data is wrong, or our understanding of it is wrong, then everything *everything* else will be wrong, and nothing else matters.

**This is a truth in the analysis business**: If somebody finds a wrong number in your analysis, nothing else can be trusted afterward

## 1. Data summary statistics

108.40.20.20 Data Analysis - Raw data understanding and summary statistics

## 2. Compare the data to external resources

##### Graph:

- 108.10.20.30 Data Analysis - Summary statistics and confirmation to 108.10.20 Data Analysis - Step 2 ingest clean validate
- 108.10.20.30 Data Analysis - Summary statistics and confirmation to 108.10.20.20 Data Analysis - Clean and map data
- 108.10.20.30 Data Analysis - Summary statistics and confirmation to 108.40.20.20 Data Analysis - Raw data understanding and summary statistics
- 108.10.20.30 Data Analysis - Summary statistics and confirmation to 108.10.20.30.10 Data Analysis - External data validation
- 108.10.20 Data Analysis - Step 2 ingest clean validate to 108.10.20.30 Data Analysis - Summary statistics and confirmation
- 108.10.20.30.10 Data Analysis - External data validation to 108.10.20.30 Data Analysis - Summary statistics and confirmation