7th Edition

ISBN: 9781305254060

Author: Charles Henry Brase, Corrinne Pellillo Brase

Publisher: Cengage Learning

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Chapter 6, Problem 6CR

Ecology: Predator and Prey Isle Royale. an island in Lake Superior, has provided an important study site of wolves and their prey. In the National Park Service Scientific Monograph Series 11. Wolf Ecology and Prey Relationships on Isle Royale. Peterson gives results of many wolf-moose studies. Of special interest is the study of the number of moose killed by wolves. In the period from 1958 to 1974, there were 296 moose deaths identified as wolf kills. The age distribution of the kills is as follows.

Age of Moose in Years	Number Killed by Wolves
Calf (0.5 yr)	112
1-5	53
6-10	73
11-15	56
16-20	2

(a) For each age group, compute the probability that a moose in that age group is killed by a wolf.

(b) Consider all ages in a class equal to the class midpoint. Find the expected age of a moose killed by a wolf and the standard deviation of the ages.

Chapter 6, Problem 6CR, Ecology: Predator and Prey Isle Royale. an island in Lake Superior, has provided an important study

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Chapter 6 Solutions

Understanding Basic Statistics

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Solution Summary: The author explains how to determine the probabilities of moose being killed by a wolf in each age group.

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