A discrete random variable Y has discrete distribution given in the following table: yi f(yi) 0 .2
Question:
A discrete random variable Y has discrete distribution given in the following table:
yi f(yi)
0 .2 1 .3 2 .3 3 .1 4 .1
(a) Calculate P(1 < Y ≤ 3).
(b) Calculate E(Y ).
(c) Calculate V ar(Y ).
(d) Let W = 2Y + 3. Calculate E(W).
(e) Calculate V ar(W).
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