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A discrete random variable has a standard deviation of 2. The standard deviation of Y where Y=3-4X is equal to? Please answer my question I gave ti Sufi 2002? In a 0.4g sample of Mg3(PO4)2, how many phosphorus atoms would you find? Order Acid strength and Explain how to order : N^3- NH^2- HSO4^- SO4^2-? How light does not leave an optical fiber when the fiber is bent into an arc?