Consider an experiment with four groups,with two values in each a. How many degrees of freedom are there in determining the among-group variation? b.How many degrees of freedom are there in determining the within-group variation c.How many degrees of freedom are there in determining the total variation? a.There is/are degree(s) of freedom in determining the among-group variation. (Simplify your answer.) b.There is/are degree(s) of freedom in determining the within-group variation. (Simplify your answer.) c.There is/are degree(s)of freedom in determining the total variation. (Simplify your answer.)