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X2 12 10 1 2 3 4 5 6 7. 8 9 10 11 12 X1 30 47 25 51 40 51 74 36 59 76 17 16 5 19 7 12 13 16 Y 94 108 112 178 94 175 170 117 142 211 (a) Develop an estimated regression equation relating y tox. (Round your numerical values to one decimal place.) 9 Predict y of xy = 51. (Round your answer to one decimal place.) (b) Develop an estimated regression equation relating y to Xy. (Round your numerical values to one decimal place.) 9 - Predict y if x2 = 16. (Round your answer to one decimal place.) (c) Develop an estimated regression equation relating y to x, and Xz. (Round your numerical values to one decimal place.) 9- Predict y if xy - 51 and X2 - 16. (Round your answer to one decimal place.)