Statistics workflow notes
Statistics tools are grouped around descriptive summaries, variation, probability, sampling, and inference checks.
Statistics tools depend on the meaning of the data, not only the numbers. Confirm whether the dataset is a sample or population, whether values are independent, and whether outliers or missing data should be handled before calculating.
- Use descriptive tools first to inspect the data shape before moving to probability or confidence calculations.
- Routes for standard deviation, variance, percentile, and z-score are best used with clean numeric inputs.
- Statistical outputs depend on assumptions about sample type, distribution, and independence; review those assumptions before reporting.
- Run descriptive checks before relying on probability, z-score, or confidence interval pages.
- When sharing a statistical result, include sample size and the assumption used by the tool.
- If values were copied from a spreadsheet, scan for blank cells, headers, commas, or units that were pasted as numbers.
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