there are three variables X Y&Z denoting GDP, fiscal expenditure and fiscal revenue. which of the following is possible:   lim corr(X,Y) = + INFINTY cov(X,Y) = 356 corr(X,Y,Z) = 0.95 CORR(X,Z)=1.05

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A: NOTE: Refresh your page if you can't see any equations. . take derivative

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A: As per the guidelines we can solve 2 parts only.