“…If both (1.1) and (1.2) hold for g L (n) = g U (n) = 1 for any n ≥ 1, then the random variables {X n , n ≥ 1} are called negatively orthant dependent (NOD, in short). For more details about NOD sequence, one can refer to Fakoor and Azarnoosh [6], Asadian et al [1], Wang et al [26,27], Wu [37,38], Wu and Jiang [39], Sung [21], Nili Sani et al [11], Li et al [8], Shen [16,18,20], and so on. It is well known that NA random variables are NOD random variables.…”