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Xavier Fok

Digital marketer and data analyst with 15+ years in advertising, content, and growth. Founder of DataResearchTools, based in Singapore. I write about AI tools, automation, and productivity for solopreneurs building real businesses without a team.

MRR vs ARR for SaaS: what they are and how to track them

May 16, 2026 by Xavier Fok

MRR vs ARR for SaaS: what they are and how to track them. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Data Analysis

What is churn rate for SaaS and how to calculate it

May 16, 2026 by Xavier Fok

What is churn rate for SaaS and how to calculate it. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Data Analysis

What is customer lifetime value (CLV) and how to calculate it

May 16, 2026 by Xavier Fok

What is customer lifetime value (CLV) and how to calculate it. A plain-English explainer with examples, misconceptions, and when this concept actually matters

Categories Data Analysis

What is RFM analysis?

May 16, 2026 by Xavier Fok

What is RFM analysis?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Data Analysis

What is attribution modeling?

May 16, 2026 by Xavier Fok

What is attribution modeling?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth

What is funnel analysis?

May 16, 2026 by Xavier Fok

What is funnel analysis?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Data Analysis

What is cohort analysis in 2026?

May 16, 2026 by Xavier Fok

What is cohort analysis in 2026? A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Data Analysis

What is causal inference in business?

May 16, 2026 by Xavier Fok

What is causal inference in business?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Research Methodology

What is multivariate testing?

May 16, 2026 by Xavier Fok

What is multivariate testing?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth

What is A/B testing? A plain-English primer

May 16, 2026 by Xavier Fok

What is A/B testing? A plain-English primer. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth
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Recent Posts

  • Customer acquisition cost and payback: how much you can spend to grow
  • The North Star Metric: Picking the One Number That Runs Your Business
  • Joining two datasets without quietly corrupting both
  • Statistical Significance in Plain English: When an A/B Test Is Real
  • A/B testing for solo founders: how to run one without fooling yourself

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