The stem and leaf plot shows the speed of the fastest steel roller coasters in Europe. The table shows the speed of the fastest roller coasters in North America find the range of the speed of the fastest steel roller coasters of both continents.

Answer 1

Europe:
30 | 6
40 | 5 6 7 8 9
50 | 0 1 3 6 8
60 | 4 7 8

North America:
120, 128, 128, 130, 128, 128, 130, 130, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 152, 148

Europe:
Range = 68 - 36 = 32

North America:
Range = 152 - 120 = 32

Therefore, the range of the speed of the fastest steel roller coasters in both continents is 32.