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However, the pairwise NQD structure is more comprehensive than the NA (negative associated) structure and the NOD (negatively orthant dependent) structure.
The definition was introduced by Lehmann [11], which contains independent random variable, NA (negatively associated) random variable and NOD (negatively orthant dependent) random variable et al. as special cases.
Asked if he was aware these protests could negatively affect the city's Olympic bid, the student nodded.
I nodded, nodded, nodded, nodded.
You nodded.
Grahm nodded.
Walker nodded.
Poncet just nodded.
And you nodded yes.
Everyone nodded in agreement.
The others nodded.
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