23. The standard is set so that all fish shorter than 70.20 centimeters or longer than 89.80 centimeters must be thrown back. What proportion of the population is this? a. 0.00 b. 0.05 с. 1.00 d. 1.95
23. The standard is set so that all fish shorter than 70.20 centimeters or longer than 89.80 centimeters must be thrown back. What proportion of the population is this? a. 0.00 b. 0.05 с. 1.00 d. 1.95
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Hi, I need help with question # 23. The given information is on top. Thanks in advance.

Transcribed Image Text:Use the following to answer questions 20 – 23.
A researcher is interested in the lengths of Salvelinus fontinalis (brook trout), which are known to be
approximately normally distributed with mean 80 centimeters and standard deviation 5 centimeters. To
help preserve brook trout populations, some regulatory standards need to be set limiting the size of fish
that can be caught.
20. The probability of catching a brook trout less than 72 centimeters in length is
@0.0548.
b. 0.3745.
c. 0.6255.
d. 0.9452
21. What proportion of fish are larger than 86 centimeters in length?
a. 0.0228
b. 0.0548
с..1151
d. 0.8849
ban
22. To ensure that the shortest 8% of the brook trout get thrown back the lower cutoff should be set at
a. 72.95 centimeters.
b. 75.00 centimeters.
c. 80.00 centimeters.
(d 87.03 centimeters.
20 villidadesg
23. The standard is set so that all fish shorter than 70.20 centimeters or longer than 89.80 centimeters
must be thrown back. What proportion of the population is this?
a. 0.00
b. 0.05
с. 1.00
d. 1.95
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