# Question

a. How is the moving average different from the original series?

b. For trend-seasonal analysis, why do we use exactly one year of data at a time in the moving average?

c. Which components remain in the moving average? Which are reduced or eliminated?

b. For trend-seasonal analysis, why do we use exactly one year of data at a time in the moving average?

c. Which components remain in the moving average? Which are reduced or eliminated?

## Answer to relevant Questions

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