Question

8. The stem-and-leaf plot shows the speeds of the fastest steel roller coasters in Asia. The table shows the speeds of the fastest steel roller coasters in North America.
Speeds of the fastest steel roller coaster in Asia:
Stem: 7, 8, 9, 10
______________________

Leaf: 2 3 4 5, 0 1 2 3 4 6, 8, 1
Key: 7 | 2 = 72 mph.
Speeds of the Fastest Steel Roller Coaster in North America (in miles per hour):
Canada: 95 96 99
U.S.: 115 98 100
Mexico: 97 96 82
Find the range of the speeds of the fastest steel roller coaster on both continents.
The range of the speeds of the fastest steel roller coaster in Asia is _______ mph. The range of the speeds of the fastest steel roller coasters in North America is _______ mph.

Answer 1

The range of the speeds of the fastest steel roller coaster in Asia is 41 mph (from 70 mph to 111 mph).
The range of the speeds of the fastest steel roller coasters in North America is 33 mph (from 82 mph to 115 mph).