This (free) educational project has been created by Laurin Gschnitzer (15 years of age).
MathematicsProbability

Chebyshev's Inequality

P(|X−μ| ≥ kσ) ≤ 1/k²

Bounds the probability that a random variable lies far from its mean.

More detailed explanations, examples and illustrations for this entry are coming soon.