Studies to fit a logistic model to the Eastern Pacific yellowfin tuna population have yielded 148 N = 1 + 3.6e-2.61t' where t is measured in years and N is measured in thousands of tons of fish.t (a) What is the r value for the Eastern Pacific yellowfin tuna? r = per yr (b) What is the carrying capacity K for the Eastern Pacific yellowfin tuna? K = thousand tons (c) What is the optimum yield level? thousand tons (d) Use your calculator to graph N against t. 200 200

Studies to fit a logistic model to the Eastern Pacific yellowfin tuna population have yielded 148 N = 1 + 3.6e-2.61t' where t is measured in years and N is measured in thousands of tons of fish.t (a) What is the r value for the Eastern Pacific yellowfin tuna? r = per yr (b) What is the carrying capacity K for the Eastern Pacific yellowfin tuna? K = thousand tons (c) What is the optimum yield level? thousand tons (d) Use your calculator to graph N against t. 200 200

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Description: Studies to fit a logistic model to the Eastern Pacific yellowfin tuna population have yielded148N =-2.61t'1 + 3.6ewhere t is measured in years and N is measured in thousands of tons of fish.t(a) What is the r value for the Eastern Pacific yellowfin

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

Studies to fit a logistic model to the Eastern Pacific yellowfin tuna population have yielded
148
N =
-2.61t'
1 + 3.6e
where t is measured in years and N is measured in thousands of tons of fish.t
(a) What is the r value for the Eastern Pacific yellowfin tuna?
r =
per yr
(b) What is the carrying capacity K for the Eastern Pacific yellowfin tuna?
K =
thousand tons
(c) What is the optimum yield level?
thousand tons
(d) Use your calculator to graph N against t.
200
200
180
180
160
160
140
140
120
120
N 100
N 100
80
80-
60
60-
40
40
20
20
2
4
6.
10
12
2
6
8
10
12
200
200
180
180
160
160
140
140
120
120
N 100
N 100
80
80
60
60
40
40
20
20
4
6
8
10
12
2
4
6
8
10
12
(e) At what time was the population growing the most rapidly? (Round your answer to two decimal places.)
yr

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