Mathematics - PearsonAccess.com

Objective 9●Notice that although the length of the bar for blueberry muffinsis about twice as long as the bar for cinnamon muffins, theactual number of blueberry muffins sold is not twice thenumber of cinnamon muffins sold. The vertical scale of thegraph shows that about 170 blueberry muffins and about120 cinnamon muffins were sold. Therefore, blueberry muffinswere not twice as popular as cinnamon muffins.A histogram is a special kind of bar graph that shows the number ofdata points that fall within specific intervals of values. The intervalsinto which the data’s range is divided should be equal. If the intervalsare not equal, the graph could be misleading and result in invalidconclusions.Look at the histogram below showing the number of vehicles passingthrough an intersection at various times of day.NumberofVehicles14,00012,00010,0008,0006,0004,0002,0000Traffic at Intersection ofMain and Pine6:01 A.M.–Noon12:01 P.M.–6 P.M.6:01 P.M.–MidnightTime of Day12:01 A.M.–6 A.M.About 12,400 vehicles passed through the intersection between6:01 A.M. and noon. About 10,300 passed through between 12:01 P.M.and 6 P.M. About 6,300 passed through between 6:01 P.M. andmidnight. About 1,000 passed through between 12:01 A.M. and 6 A.M.244