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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.

What is data quality?

May 17, 2026 by Xavier Fok

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

Categories Data Skills

What is statistical significance for business decisions

May 16, 2026 by Xavier Fok

What is statistical significance for business decisions. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Research Methodology

OKR vs KPI: what is the difference and when to use each

May 16, 2026 by Xavier Fok

OKR vs KPI: what is the difference and when to use each. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth

What is a north star metric?

May 16, 2026 by Xavier Fok

What is a north star metric?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth

What is product-led growth?

May 16, 2026 by Xavier Fok

What is product-led growth?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth

What is conversion rate optimization?

May 16, 2026 by Xavier Fok

What is conversion rate optimization?. A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth

What is bounce rate in 2026 (and why it changed)

May 16, 2026 by Xavier Fok

What is bounce rate in 2026 (and why it changed). A plain-English explainer with examples, misconceptions, and when this concept actually matters.

Categories Growth

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
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Recent Posts

  • What is data quality?
  • What is statistical significance for business decisions
  • OKR vs KPI: what is the difference and when to use each
  • What is a north star metric?
  • What is product-led growth?

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