x = number of bars of signal strength Marginal probability distribution of Y y = number of times city name is stated 1 4 0.15 30.02 2 3 0.1 0.05 0.3 0.1 0.05 0.17 2 0.02 0.03 0.2 0.25 10.01 0.02 0.25 0.28 0.2 0.25 0.55 Marginal probability distribution of X Find the conditional mean and variance of Y|3 Mean = Blank 1 Variance = Blank 2

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