Question: Hi, could you please help me with this? THanks :) QUESTION 10 A discrete random variable X takes only 3 vlaues: -1, 0 and 1.

Hi, could you please help me with this? THanks :)

QUESTION 10 A discrete random variable X takes only 3 vlaues: -1, 0 and 1. Furthermore we know that E(X) =0. Which of the following must be true? O a. Py( - 1) = Px(0) Ob. Py ( - 1) = Px(1) O c. Py (0 ) = Px(1) Od.py( - 1) = 3

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