

MCQOPTIONS
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1. |
What is the correct expression for the EWMA? |
A. | zi = λxi + (1-λ) zi-1 |
B. | zi = λxi – (1-λ) zi-1 |
C. | zi = λxi + (1-λ) zi+1 |
D. | zi = λxi + (1+λ) zi-1 |
Answer» B. zi = λxi – (1-λ) zi-1 | |