Suppose the joint pdf of lifetimes of a certain part and a spare is given by...
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Suppose the joint pdf of lifetimes of a certain part and a spare is given by S(x, y) = e (e+9), 0<x< 00, 0 < y<o0 and zero otherwise. (a) Find the marginal pmf of X? (b) Find P(X > 2)? (c) Find P(X <Y). (d) Find P((X +Y) > 2). (e) Are X and Y independent? Suppose the joint pdf of lifetimes of a certain part and a spare is given by S(x, y) = e (e+9), 0<x< 00, 0 < y<o0 and zero otherwise. (a) Find the marginal pmf of X? (b) Find P(X > 2)? (c) Find P(X <Y). (d) Find P((X +Y) > 2). (e) Are X and Y independent?
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