  This paper primarily concerns the variance estimate of zeros of systems of
random holomorphic sections associated with a sequence of smooth Hermitian
holomorphic line bundles on a compact Kahler manifold X. The probability
measures taken into consideration in this paper satisfy a certain condition
which makes it much more general(possibly the most general) than (all) the
measures mostly studied in the literature. In particular we also give variance
estimates for several known measures such as Gaussian and Fubini-Study
measures.
