The Whitney number of the rank- Dowling lattice based on the group having order is the number of elements in of co-rank . The associated numbers and were studied by M. Benoumhani [\emph{Adv. in Appl. Math}. 19 (1997), no. 1, 106-116] where a generating function was derived using algebraic techniques and logconcavity was shown for and for . We give a central limit theorem and a local limit theorem on for and for . In addition, asymptotic formulas for , and their modes are given.
Keywords: Central limit theorem: Local limit: theorem: Asymptotic formulas