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What is the value of 'x' from the given proportions, 4:7:12:x?

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Let the joint probability of the variable X and Y be given by f_XY(x, y) = xy + x/84, x = 1, 2, 3; y = 1, 2, 3, 4. Find f_x(x) ... ​(b) Find the critical​ value(s) and identify the rejection​ region(s). (c) Find .... Period Actual Forecast 1 Forecast 2 1 7 10 7 2 8 9 10 3 9 8 11 4 7 12 9 5 8 6 11 The MAD s for Forecast 1 an. read more

Learn the reasoning behind solving proportions. We'll put some algebra to work to get our answers, too. read more

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