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Linear Modelinghard
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In a simple linear regression model y^=β0+β1x\hat{y} = \beta_0 + \beta_1 xy^​=β0​+β1​x, if the mean of xxx is xˉ=5\bar{x} = 5xˉ=5, the mean of yyy is yˉ=10\bar{y} = 10yˉ​=10, and the slope β1=2.5\beta_1 = 2.5β1​=2.5, what is the intercept β0\beta_0β0​?