Xavier Fok A plain English guide to p values for solo business owners: what a p value measures, why 0.05 is a convention not a law, and the mistakes that turn a passing test into a bad decision.
A plain-English guide to weighted averages: what they are, when they beat a simple average, and how to use them honestly for churn, MRR, and conversion numbers.
A plain-English guide to customer segmentation that starts with the data you already have, not with personas you made up. Includes RFM, value-based, and behavioral approaches a solo operator can actually run.
A plain-English method for finding where your funnel loses people, separating real problems from normal attrition, and deciding what to fix first.
A plain-English guide to running pricing tests when your traffic or customer count is small, what small samples can tell you, and what they can’t.
A practical walkthrough of broken tracking backfill: how to find when your analytics broke, what you can honestly reconstruct, and what you have to let go.
A plain English walkthrough of Bayes theorem for solo founders, with concrete examples for reading churn alerts, A/B tests, and small-sample dashboards without overreacting to noise.
A plain-English guide to the base rate fallacy: what it is, why solo operators fall for it in churn models, fraud alerts, and A/B tests, and how to correct for it without needing a stats degree.
A plain-English guide to how to size a sample for A/B tests and business experiments when you’re running the numbers yourself, no statistics degree required.
A plain-English guide to spotting outliers in your business data, telling errors from real extreme values, and deciding what to actually do about them.