Which of the following correctly compares the uses of bar graphs versus pie charts? bar graphs show patterns in data with variables that change over time; whereas, pie charts show data as parts out of a whole (such as out of 100%). bar graphs show data as parts out of a whole (such as out of 100%) within a category; whereas, pie charts show data having two or more different categories. bar graphs show data involved in distinct categories that do not overlap; whereas, pie charts show data as parts out of a whole (such as out of 100%). bar graphs show data involved in distinct categories that do not overlap; whereas, pie charts show patterns in data with variables that change over time.