12.The World Roller Coaster Census Report lists the following numbers of roller coasters on each continent. Represent the data graphically, using a Pareto chart. Use agrid paper.

[4 pts]

Africa 17

Asia 315

Australia 22

Europe 413

North America 643

South America 45

13.The blood urea nitrogen (BUN) count of wo randomly selected patients is given here in milligrams per deciliter (mg/dl). Construct an ungrouped frequency distribution for the data.

[2 pts]

17 18 13 14

12 17 11 20

13 18 19 17

14 16 17 12

16 15 19 22