We calculate the three-period moving averages for a time series for all time periods except the:
A)first and last period.
B)first two periods.
C)last two periods.
D)first and last two periods.

Question

Quizplus · Accepted Answer

The three-period moving average requires data from the current period and the two preceding periods, so it cannot be calculated for the first period. Similarly, it cannot be calculated for the last period as there are no subsequent periods to include.

We Calculate the Three-Period Moving Averages for a Time Series