A thorough, genuinely free grounding in the statistics behind data science and analytics. Khan Academy teaches it through mastery-based practice, so you drill each idea until it sticks rather than just watching. There is no certificate, so treat it as skill-building, not a credential.
Good for: Beginners who want the maths behind data work, or anyone revising statistics.
Less suitable if: You need a certificate to show an employer, or you already know hypothesis testing and distributions.
You want the statistics foundation for data science
You learn best by practising, not just watching
You are revising school or college statistics
Consider something else if you…
You need a certificate for job applications
You already know inferential statistics
You want a guided, deadline-based course
Requirements: Basic school algebra; no prior statistics needed.
Realistic time: Around 45 hours of practice, self-directed over a few weeks.
About this course
Khan Academy's Statistics and Probability course is one of the most widely used free math resources in the world, covering descriptive statistics, probability theory, distributions, inference, and regression through short videos paired with mastery-based practice exercises. Unlike a video-only course, Khan Academy tracks mastery per skill and won't let you move on until you've demonstrated understanding, which produces more durable learning than passive video watching.
What you'll learn
Calculate and interpret measures of central tendency and spread
Understand probability theory and common distributions
Conduct hypothesis tests and interpret p-values correctly
Build and interpret confidence intervals
Understand basic linear regression and correlation
This course includes
45h
On-demand video
Yes
Mobile access
English
Language
What it costs
Completely free, with no paywall and no certificate to buy. Khan Academy is a non-profit, so all lessons and practice are open to everyone.
Comparison · LBS
Compare alternatives for Statistics and Probability
Same topic, different options. We surface the trade-offs others hide so you can pick the course that actually fits your time, budget, and goals.
KAKhan Academy4.8(12,000)
Statistics and Probability
Price
Free
Completely free, forever
Duration
45 hrs
Level
Beginner
Certificate
COCoursera4.8(14,000)
Google Advanced Data Analytics Professional Certificate
Produced by Khan Academy, a nonprofit educational organization providing free, high-quality education to anyone, anywhere, with content used by hundreds of millions of learners worldwide.
About this provider
KA
Khan Academy
Non-profit free education platform. World-class education for anyone, anywhere.
A common path is Get Ready for AP Statistics, then High School Statistics, then AP Statistics. The material only assumes basic arithmetic, so you can begin with no background.
For the statistics foundation, yes. It covers the descriptive and inferential statistics most data work relies on. You will still need a tool like Python or R separately.
No. Khan Academy focuses on learning rather than credentials, so there is nothing to show an employer beyond the skills.
Yes, entirely. Khan Academy is a non-profit and charges nothing for lessons or practice.
Around 45 hours of practice, usually spread over a few weeks at your own pace.
Only basic arithmetic and a little algebra. Everything else is built up from the start.