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Let x be a random variable with probability mass function (x) = k, |x|, if x = -2, 1, 3 =0, otherwise where, K is a constant. Then the variance of x is : ?->(Show Answer!)
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1. Let x be a random variable with probability mass function (x) = k, |x|, if x = -2, 1, 3 =0, otherwise where, K is a constant. Then the variance of x is :





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