This week we'll discuss how the choice of a time series model can influence the viewer's perspective. Start by thinking about how the perception of a "current situation" could be affected by a 3 days moving average compared with a 7 days moving average.

• How does each one of those two representations look if the last two days have a significant difference when compared with the days before?

Maybe something important happened that justifies highlighting that difference, maybe it did not.

• How relevant is the entire week?

Think, for instance, about the difference between a pandemic, a pandemic outbreak, and the stock market. Expand on your thoughts on how the choice of model can be used to manipulate perception.