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2.X, defined over the range (1, ∞) has pdf given by: f(x) = 2/x3 Calculate E(x),...

2.X, defined over the range (1, ∞) has pdf given by:

f(x) = 2/x3

  1. Calculate E(x), E(x2) and Var(x)
  2. Calculate E(X/5) E[(X/5)2] and Var(X/5)
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