On intervened negative binomial distribution and some of its properties

SATHEESH KUMAR, C.; Department Of Statistics - University Of Kerala, Kariavattom, Trivandrum & SREEJAKUMARI, S.; Department Of Statistics S. - Government College, Kariavattom, Trivandrum
Here we develop a new class of discrete distribution namely intervened negative binomial distribution and derive its probability generating function, mean, variance and an expression for its factorial moments. Estimation of the parameters of the distribution is described and the distribution has been fitted to a well known data set.