Several measures of the degree of contextuality in contextual systems were proposed within the CbD framework, but only one of them, denoted CNT 2, has been shown to naturally extend into a measure of noncontextuality in noncontextual systems, NCNT 2. This is important, because at least in the non-physical applications of CbD contextuality and noncontextuality are of equal interest. Both CNT 2 and NCNT 2 are defined as the L 1 -distance between a probability vector p representing a system and the surface of the noncontextuality polytope P representing all possible noncontextual systems with the same single-variable marginals. For cyclic systems of dichotomous random variables, it is shown that if the system is contextual (i.e., D ( C n ) > Δ Δ ( C n ) ),