Medical: Injuries The Grand Canyon and the Colorado River are beautiful, rugged, and sometimes dangerous. Thomas Myers is a physician at the park
clinic in Grand Canyon Village. Dr. Myers has recorded (for a 5-year period) the
number of visitor injuries at different landing points for commercial boat trips
down the Colorado River in both the Upper and Lower Grand Canyon (Source:
Fateful Journey by Myers, Becker, Stevens).
Upper Canyon: Number of Injuries per Landing Point Between North Canyon
and Phantom Ranch
2 3 1 1 3 4 6 9 3 1 3
Lower Canyon: Number of Injuries per Landing Point Between Bright Angel
and Lava Falls
8 1 1 0 6 7 2 14 3 0 1 13 2 1
(a) Compute the mean, median, and mode for injuries per landing point in the
Upper Canyon.
(b) Compute the mean, median, and mode for injuries per landing point in the
Lower Canyon.
(c) Compare the results of parts (a) and (b).
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