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    I have a Mean and Standard Deviation. If I multiply the Mean by a number (non-constant), do I have to multiply the Standard Deviation by that number?

    Hello! I'm making an MLB Model and I'm at a point where I'm stuck. I have the AVG Runs Scored for each team, and the Standard Deviation of Runs Scored for each team for the season as well. If I know that one team is facing a pitcher who is superb, let's say 15% better than the league average...