Let X 1 , X 2 ,...,X n be n independent random variables, each with expected value µ and finite positive variance σ2. Use Chebyshev’s inequality to show that for any a > 0 one ha   Use this fact to...

Let X₁, X₂,...,X_n
be n independent random variables, each with expected value µ and finite positive variance σ2. Use Chebyshev’s inequality to show that for any a > 0 one ha

Use this fact to explain the occurrence of a single spike in the left column of Figure 14.1.