Question

Select the correct answer from each drop-down menu. The table lists the speeds of the fastest roller coasters in North America and Asia.

Roller Coaster Speeds in North America (miles/hour)
----------------------------------------------------------------------------
128
120
100
93
92
80.8
85
82
80
77


Roller Coaster Speeds in Asia (miles/hour)
--------------------------------------------------------------
149.1
106.9
95
83
90
80.3
78.3
71.5
69.6
68.4


The difference of the means of the two data sets is _____

The mean absolute deviation of the roller coaster speeds in North America

is _____

The mean absolute deviation of the roller coaster speeds in Asia is ______

Answer 1

Answer:

the answer is

6.41

12.78

17.226

Step-by-step explanation:

Answer 2

Difference in their means = 93.78 - 89.21 = 4.57

Mean absolute deviation for Speeds in North America: 13.3

Mean absolute deviation for Speeds in Asia: 16.8

What is the Mean Absolute Deviation of a Data Distribution?

Mean absolute deviation = average of the distance of each data point from the mean.

Data for Speeds in North America:

128, 120, 100, 93, 92, 80.8, 85, 82, 80, 77

Mean = (128 + 120 + 100 + 93 + 92 + 80.8 + 85 + 82 + 80 + 77)/10 = 937.8/10

Mean for North America = 93.78

Mean Absolute Deviation for North America = (128 - 93.78) + ( 120 - 93.78) + ( 100 - 93.78) + ( 93 - 93.78) + ( 92 - 93.78) + ( 80.8 - 93.78) + ( 85 - 93.78) + ( 82 - 93.78) + ( 80 - 93.78) + ( 77 - 93.78) / 10

Mean Absolute Deviation for North America = 133.32/10 = 13.3

Data for Speeds in Asia:

149.1, 106.9, 95, 83, 90, 80.3, 78.3, 71.5, 69.6, 68.4

Mean for Asia = (149.1 + 106.9 + 95 + 83 + 90 + 80.3 + 78.3 + 71.5 + 69.6 + 68.4)/10 = 892.1/10

Mean = 89.21

Mean Absolute Deviation for Asia = (149.1 - 89.21) + ( 106.9 - 89.21) + ( 95 - 89.21) + ( 83 - 89.21) + ( 90 - 89.21) + ( 80.3 - 89.21) + ( 78.3 - 89.21) + ( 71.5 - 89.21) + ( 69.6 - 89.21) + ( 68.4 - 89.21) / 10

Mean Absolute Deviation for Asia = 168.32/10 = 16.8

Difference in their means = 93.78 - 89.21 = 4.57

Learn more about the mean absolute deviation on:

https://brainly.com/question/447169

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