Question: Given two randOm variables X and Y, prove that var[X + Y] = var[X] + var[Y] + 2cm;[X, Y] where cov[X, Y] is the covariance

Given two randOm variables X and Y, prove that var[X +

Y] = var[X] + var[Y] + 2cm;[X, Y] where cov[X, Y] is

Given two randOm variables X and Y, prove that var[X + Y] = var[X] + var[Y] + 2cm;[X, Y] where cov[X, Y] is the covariance between X and Y

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