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wrote...
Posts: 221
2 weeks ago
There are 18 roller coasters in Virginia for which the lengths (in feet) were reported. Those lengths are listed in the table at the right.

a. Sketch a histogram for these data.
b. Find the mean and standard deviation of the roller coaster lengths.
c. Is it appropriate to use the mean and standard deviation to summarize these data? Explain.
d. Describe the distribution of roller coaster lengths.
Textbook 

Stats: Modeling the World


Edition: 4th
Authors:
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wrote...
Posts: 268
2 weeks ago
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a.

b. = 2918.3ft, s = 1172.92 ft
c. Yes, the data are roughly unimodal and symmetric with no outliers.
d. The mean roller coaster length is 2918 ft, ranging from 600 ft to 5100 ft. The distribution is roughly symmetric, with typical lengths clustered between 2000 ft and 4000 ft.
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