You own a food truck that is popular with the downtown lunch crowd, average demand is 200 customers per day. However, know that demand is highest (well above average) on Wednesdays and Thursdays, average on Mondays, Tuesdays and Fridays and below average on Saturdays and Sundays. This pattern is predictable--ocurring week after week, year after year. This is a good example of Group of answer choices Seasonality Stable pattern Trend Error / random effect