Chebyshev's Theorem | Formula, Usage & Examples

SOLVED:Use Chebyshev's inequality to show that if X and Y are two arbitrary random variables satisfying E{(X-Y)^2}=0, then we have P(X=Y)=1, namely X and Y are almost surely identical. [Hint: P(|X-Y|>ϵ)=0 for any ϵ>0 .]

Cauchy-Schwarz Inequality | Overview & Applications

Chebyshev Inequality