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4. Stationarity / Pfizer [3 points] Please rank the figures below from 1-3 where rank #1 is the most stationary series and rank #3 is

image text in transcribed 4. Stationarity / Pfizer [3 points] Please rank the figures below from 1-3 where rank \#1 is the most stationary series and rank \#3 is the least stationary series. Figure 4b - Time Plot / First Difference of Pfizer Closing Price d pfe Figure 4c-Time Plot / First Difference of Natural Log Pfizer Closing Price d_Inpfe

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