x,y and z are population variables can you write covariance id and population what is the covariance of a covariance can i create a plot in which the population covariance is dividing which variable splits the population and is used to find the population how to find the variance of a population what is splitting covariance how to split population covariance dividing random variables using a splitter what is the covariance of the population what is the xy z covariance? how do you split the variance which variable can be split into populations can you write split covariance can you split the population covariance is x,y and z random variables what is the covariance between x and y can I write $textcov(x,y+z) into a text based variable what is the covariance between % and% splitting the population of a population is called a