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X is a team lifetime, X~Exp(λ=0.02) find: μ, σ P(X>3) P(1<X<4) P(X>a)=0.01, what is the value...

  1. X is a team lifetime, X~Exp(λ=0.02) find:
    1. μ, σ
    2. P(X>3)
    3. P(1<X<4)
    4. P(X>a)=0.01, what is the value of a?
    5. P(X>3/X>1)
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