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1 The following table provides the probability distribution for a random variable X. What is the variance of X? X159 P(x) 0.40 0.20 9 0.40
1 The following table provides the probability distribution for a random variable X. What is the variance of X? X159 P(x) 0.40 0.20 9 0.40 3.20 7.20 12.80 0 9.76 5.76 20 pts
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