Suppose that the probabilities are 0.3, 0.4, 0.2, and 0.1, respectively, that 0, 1, 2, or 3 power failures will strike a certain subdivision in any given year. Find the mean and variance of the random variable X representing the number of power failures striking this subdivision. Calculate the mean, μ. The mean is (Round to two decimal places as needed.) Calculate the variance, o². The variance is. (Round to two decimal places as needed.)

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