how do you find out the covariance of timeseries how to calculate covariance in excel how do you calculate the covariance of timeseries how to calculate the covariance in timeseries in excel how to find covariance in time how to determine the covariance of a timeseries? what is the serial covariance how to calculate covariance in timeseries how to find covariance calculate the first order covariance of a time series how to calculate the first order of serial covariance of a period in excel? how to find the first order serial covariance how to find the serial covariance in excel how to calculate the first order of covariance? how do I calculate the first order serial covariance of the date of the date in an excel table how to calculate the covariance of a timeseries what is the date of a covariance how to calculate covariance in a time series what is the formula for covariance of a timeseries in excel how to determine serial covariance of time