Errata in CFA curriculum book, Reading 11, Example 10, Table 10

[archived_user]

Following sentence appears under Table 10 of Example 10 in SS11:
If the exchange rate is a random walk, its current value will be an extremely good predictor of its value in the next period, and thus the R2 will be extremely high. At the same time, if the exchange rate is a random walk, then changes in the exchange rate should be completely unpredictable
Might this be an Erratum?

 

[archived_user]

I think this part should read as
If the exchange rate is NOT a random walk, its current value will be an extremely good predictor of its value in the next period, and thus the R2 will be extremely high.