Mathematics · Time Series Analysis
A business prepares its budget using time series analysis. Given the sales values (in 000s) below, what is the seasonal variation for the month of October using a 3-month moving average? June: 770, July: 750, August: 928, September: 854, October: 834, November: 1012, December: 938
- 1+38
- 2+66
- 3-38
- 4-66✓
Correct answer
-66
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