Question

The stem-and-leaf plot shows the speeds of the fastest steel roller coasters in Europe. The table shows the speeds of the fastest steel roller coasters in North America.

Speeds of the Fastest Steel Roller Coasters in North America
stem Leaf
7 4 5 5 5
8 0 0 3 4 8
9 9
11 1
Key: 7|4=74
miles per hour

Table of Data For Canada, U.S., And Mexico
Canada 90 128 91
U.S. 93 120 100
Mexico 95 92 85
Find the range of the speeds of the fastest steel roller coasters on both continents.

(1 point)
The range of the speeds of the fastest steel roller coasters in Europe is
mph. The range of the speeds of the fastest steel roller coasters in North America is
mph.

Answer 1

Europe: max = 111, min = 74, range = 111 − 74 = 37 mph.
North America: data = 90,128,91,93,120,100,95,92,85 → max = 128, min = 85, range = 128 − 85 = 43 mph.

So: Europe 37 mph; North America 43 mph.