Recurrent upward and downward movements in a time series are called_________________. a. Secular Trend b. Irregular Variations c. Seasonal Variations d. Cyclical Variations

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A: Periodic increases or decreases that occur at the same time each year is, Seasonality.

Q: Recurrent upward and downward movements in a time series are called O a. Cyclical Variations O b.…

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Q: Recurrent upward and downward movements in a time series are called_________________. a. Secular…

A: We know that the upward and downward movements in a time series are known as cyclical variations…

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Q: Suppose sales for the past 6 months have been 111, 106, 118, 117, 112, and 89

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