Balasubramanian, K.; Balakrishnan, N. - In: Statistics & Probability Letters 16 (1993) 3, pp. 249-251
For a collection of n arbitrary events, we derive a sufficient condition for the log-concavity property of the sequence of probabilities of occurrence of exactly r events. For the special case of independent events, this sufficient condition is shown to be satisfied. Further, some dependence...