Question

discrete random variable has probability mass function, P(X = n) = ?1?n.

? 1, forxeven Let Y = −1, for x odd

Find the expected value of Y ; (E[y]).

probability function mass A discrete random variable has P ( X = n) = (3) for x Y = { for Find the expected value of Y CE(y)] Let even x odd

Answer 1

Probability X is even = E P(x= 20) Lai Ele) 2 + It 4 64 4111 TH It It 4 16 s=1t8+ 4. - IX A ها در il wi- CS Proleabiliting X is even is, cin CamScanner

Probability yo, vydd = P(-1)+ PLX=3)+ Ply=5)+ + 1 2 B 32 + ] 2 4 2 x 42 z 3 2 Probability x is odd = 2/3 42 x euen for for X odd E14)= 1 PCX = ereen) -1 (PX=0dd) - أ) برای WI Ely) = -1 3 Scantreuithe CamScanner