Statistics Crash Course
Struggling with Statistics? This free crash course breaks down the hardest Intro Stats topics — standard deviation, normal distribution, p-values, confidence intervals, hypothesis testing, and regression — into clear, step-by-step lessons with practice problems. Built by MakeSense AI.
Start Learning — FreeWhat you'll learn
Concrete skills and knowledge you'll walk away with.
Calculate and interpret mean, median, and mode
Explain when the mean is misleading and why the median is more robust
Calculate and interpret standard deviation as a measure of spread
Apply the 68-95-99.7 rule to normally distributed data
Explain why adding many random effects produces a bell curve
Use the normal distribution to calculate probabilities
Mean, Median, Mode — When Each One Lies to You
What the three averages actually measure, when the mean gets pulled by outliers, and how to pick the right summary statistic for any dataset.
How it works
From first click to course complete in three steps.
Read Lesson 1 free
No signup needed — jump straight in and start learning.
Create a free account
Track your progress and pick up where you left off.
Complete the course
Work through all 11 lessons at your own pace.
Course Curriculum
Making Sense of Numbers
The Bell Curve & Why It's Everywhere
Probability & Bayes
Confidence & P-Values
Hypothesis Testing
Correlation & Regression
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Statistics Crash Course
11 lessons · ~2 hours · completely free
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