所屬科目:研究所、轉學考(插大)◆機率
(a) Write down the space of X.
(b) Find k.
(c) Sketch the C.D.F. of X.
(d) Calculate EX and VarX.
(e) Calculate Pr(X < 3).
(f) Let Y = X². Find the p.m.f. of Y.
(a) Find k.
(b) Find the marginal p.d.f. of X.
(c) Find EX.
(d) Are X and Y independent? Explain your answer.
(a) Are X and Y independent? Explain your answer.
(b) Calculate Pr(X > 3).
(c) Let Z = X/Y. Find the marginal p.d.f. of Z.