Question: = 1,2,3. Exercise 4 A discrete random variable X takes values 1, 2 and 3 with P(X = n) = cn for n =

= 1,2,3. Exercise 4 A discrete random variable X takes values 1,

= 1,2,3. Exercise 4 A discrete random variable X takes values 1, 2 and 3 with P(X = n) = cn for n = 1. Find the value of the constant c; Hint: we should have P(X = 1) + P(X = 2) + P(X = 3) = 1. 2. Compute E(X).

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