How do unit increases in sample size (i.e., going from 1 to 2 to 3 and so on) impact the mean and variance of the sampling distribution of totals? As n increases, the mean remains unchanged, but the variance increases on a linear basis The mean increases by
E(x)
and the variance by
Var(x)
with each unit increase in
n
The total of the averages and the total of the variability increase logarithmically with unit increases in
n
The mean remains unchanged
(u)
, but the variance decreases with unit increases in
n
The mean and the variance remain unchanged