In this paper we will introduce a measure of interactivity between marginal distributions of a joint possibility distribution as the expected value of the interactivity relation between the -level sets of its marginal distributions

Dubois and Prade defined an interval-valued expectation of fuzzy numbers, viewing them as consonant random sets. Carlsson and Fuller defined an interval-valued mean value of fuzzy numbers, viewing them as possibility distributions. In this paper we shall introduce the notation of weighted...