What is the formula to solve a z score of 52 with a standard deviation of 8

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

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Given the functions, f(x) = 2x^2 - 1 and g(x) = 5x, find f(g(x)) and g(f(