Use the given data to find the equation of the regression line. x 1 3 5 7 9 y 143 116 100 98 90 a) ? = 150.7 - 6.8x b) ? = -140.4 + 6.2x c) ? = 140.4 - 6.2x d) ? = -150.7 + 6.8x
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x-values: 143, 116, 100, 98 Mean of x-values: (143 + 116 + 100 + 98) / 4 = 114.25 y-values: 150, -6.51, -140.4, -150.7 Mean of y-values: (150 - 6.51 - 140.4 - 150.7) / 4 = -36.9025 Show more…
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