Consider the following time series data (Figure 5), which provides information about the percent change per year in Freda's retirement account: WMA(3) SMA(3) Year 2015 2016 2017 2018 2019 Change 7 2 5 1 6 B (Figure 5) The value of B should be: 3 2.67 4 O 4.667 O 1.33