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Distance to ChildLine of Best FitAverage Distance between Mother and Child over the Course of a Lifetimebased on declared city on FacebookChild's AgeMean Distance to Child (miles)Data: Facebook Data ScienceR​2​ = 0.9837y = 1593.344 + -281.37x + 21.513 * x^2 + -0.781 * x^3 + 0.015 * x^4