Relative references describe the position of a cell relative to the cell containing the assumption. For example, suppose an assumption in cell C6 refers to cell C5. If the assumption in C6 is copied to cell C9, the relative reference to C5 will then refer to the value in cell C8. With relative references, you can easily set up a whole row or column of assumptions, each having similar distributions but slightly different parameters, by performing just a few steps. An absolute reference, on the other hand, always refers back to the originally referenced cell, in this case C5.