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Questions

ACCN-3290-02Sp25 Week 3 Quiz

Single choice

Options
A.It calculates the cumulative average
B.It returns the sum of all Sales
C.It calculates the cumulative sum of the Sales column
D.It calculates the moving average of Sales
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Step-by-Step Analysis
To analyze what df['Sales'].expanding().sum() does, we need to consider how the expanding() and sum() methods behave together. Option 1: 'It calculates the cumulative average' - This is not correct. expanding().sum() yields c......Login to view full explanation

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