Let X be a skewed binary signal, X = -1 with probability 0.3 and X = 1 with probability 0.7. Let Y = X + Z, where Z - Uniform[-2,2], denote a communication channel from X to Y. Suppose you received Y = 0.3, what is px|Y (1 | 0.3) ? 0.3 O 0.7 O 0.5

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A: