Question: How can trendless data be evaluated? How does a trailing-moving average compare to a centered-moving average? When should exponential smoothing be used for data? Explain

How can trendless data be evaluated? How does a trailing-moving average compare to a centered-moving average? When should exponential smoothing be used for data? Explain with an example. In exponential smoothing, what type of smoothing constant should be chosen for little smoothing compared with moderate smoothing? Justify your answers using examples and reasoning

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