The random variables ? and ? have the following joint pdf. ??,? (?, ?) = ??...

The random variables ? and ? have the following joint pdf. ??,? (?, ?) = ?? ^-8x^{^2-18y^2}

a) Find the mean and variance of ? and ? and the value of ?.

b) Determine if ? and ? are independent.

c) Determine the distribution of ? and ?.

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