changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Jan 22, 2022
P_d = 8.48 + 0.32239 \cdot Z + 0.000477 \cdot Z^2
Z = \sum_{n=01}^3 \, Z_n
Z_n = C_{n0} + C_{n1} \cdot {\rm VAR}_n + C_{n2} \cdot {\rm VAR}_n^2
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