Expectation & Variance
The long-run average of something random, and how far it typically strays — the two numbers behind losses, batches, and the bias–variance trade-off.
This lesson is part of Pro.
Free covers the C and Python courses, the first three DSA topics, the opening system design lessons and the beginner AI lessons, all with the full coach. Pro opens the rest of the library in the FollowtheDamnCode app.