1.

What_is_arithmetic_mean_diameter?$

A. S<sub>i</sub>d<sub>i</sub>/S<sub>i</sub>
B. V<sub>i</sub>d<sub>i</sub>/V<sub>i</sub>
C. N<sub>i</sub>d<sub>i</sub>/N<sub>i</sub>
D. W<sub>i</sub>d<sub>i</sub>/W<sub>i</sub>
Answer» D. W<sub>i</sub>d<sub>i</sub>/W<sub>i</sub>


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