Data Science: Probability

  • Free to audit
  • Paid certificate
  • Course certificate
  • Beginner
  • 8 weeks
Provider
Harvard
Cost
Free to audit
Certificate
Paid, $149
Level
Beginner
Duration
8 weeks
Effort
1–2 hrs/week
Format
Self-paced
Language
English
Subjects
Data Science, Mathematics
Source
Harvard Online
Last verified
14 Sep 2026

Free access to the material ends after the course length; graded work and the certificate are paid.

Data Science: Probability, part of HarvardX's Professional Certificate in Data Science, teaches the probability theory that underpins statistical inference, using the 2007-2008 financial crisis as its motivating case: part of what went wrong was that the risk of some securities sold by financial institutions was underestimated. The course introduces random variables, independence, Monte Carlo simulation, expected values, standard errors and the Central Limit Theorem, and shows how to compute these quantities in R. The point is to be able to judge whether a pattern in data is likely due to the experimental method or to chance, which is the foundation of statistical testing.

It is self-paced, eight weeks long at 1 to 2 hours per week, and rated introductory. Harvard lists the course as free to audit on edX, with a verified certificate available for $149.

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What you’ll learn

  • Define random variables and independence
  • Run Monte Carlo simulations in R
  • Compute expected values and standard errors
  • Explain the Central Limit Theorem and why it matters for inference

Who it’s for

Learners with basic R who want the probability foundations for statistics and data science.

Source: Harvard Online (opens in a new tab) · Verified · Report a change

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