Suppose x and y are related according to a probabilistic exponential model Y ex !,

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Suppose x and y are related according to a probabilistic exponential model Y  ex  !, with V(!) a constant independent of x (as was the case in the simple linear model Y 

0 1x !). Is V(Y) a constant independent of x [as was the case for Y  0 1x !, where V(Y)  2

]? Explain your reasoning. Draw a picture of a prototype scatter plot resulting from this model. Answer the same questions for the power model Y  x  !.

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