comparing two time series can i compare the variances in two time series? how to compare average vs variance of two indexes how many observations to compare time series to find variance how to compare means of two time series how to compare mean versus variance in a time series why would i need to compare two time series how to avert statistically different market returns what is the statistical difference between two different time series what is the statistically different way to compare a time series of time frames how can i find the variance in a time frame are the variances statistically different which of the following is an example of a statistically different time series, using two data sets of two different stock markets? how to compare the variances of data sets are two time series statistically different how to compare two time series how to compare the averages of two time series how does a time series comparison work why do i need to check for variance how to compare a sample from two time series