how is the variance calculated in simulations what is variance formula when to find variance of an iid sample how do you tell whether the variance in the sample is larger or smaller what is the variance when you use iid in simulation when a variance is calculated from a sample of observations with positive serial correlation how to compute variance variance of xbar in iid why does iid have a larger variance when you compute variance with an iid model, the difference between a normal variance and an independent variance is the same. what is the difference between a linear variance and a random variance? which statement best illustrates the importance of an empirically observed variance? what is the variance for sample sample if the iid is positive what is the variance does the variance of x$ have positive correlation variance of xbar what is the variance of xbar y bar how is variance calculated what to do to get sigma variance when you do random sampling with iid what will the variance be if a data sample has positive correlation, what makes the variance larger