1.

What is the value of EWMS?

A. (S_i^2= (x_i- )^2-(1- ) S_{i-1}^2 )
B. (S_i^2= (x_i- )^2-(1+ ) S_{i-1}^2 )
C. (S_i^2= (x_i- )^2+(1- ) S_{i-1}^2 )
D. (S_i^2= (x_i- )^2+(1+ ) S_{i-1}^2 )
Answer» D. (S_i^2= (x_i- )^2+(1+ ) S_{i-1}^2 )


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