Ture or falus

3 True or false i - The which are relevant range cost behaviars valid. I l is and the range in. estimate 2. The Cost equation resulting from the scotter graph, high-low and regression. is usually the same under all methods when using the same set of data ( ) 3. An ratio increase causes in the operating contribution margin- income to increase 4. A variable Cost remains Constant in total with changes in activity level ( ) S. it one increase by more the writis sold, profit will contribution margin for unit 1 l