く Chapter 5-Section 1 Homework X MindTap - Cengage Learning x + C webassign.net/web/Student/Assignment-Responses/submit?pos=3&dep=36701632&tags=autosave #question3874894_3 M Gmail 品 YouTube Maps 5. [-/20 Points] DETAILS MY NOTES BBUNDERSTAT12 5.1.020. ☆ B Verify it's you Finish update: All Bookmarks PRACTICE ANOTHER A computer repair shop has two work centers. The first center examines the computer to see what is wrong, and the second center repairs the computer. Let x₁ and x2 be random variables representing the lengths of time in minutes to examine a computer (✗₁) and to repair a computer (x2). Assume x and x, are independent random variables. Long-term history has shown the following times. 01 Examine computer, x₁₁ = 29.6 minutes; σ₁ = 8.1 minutes Repair computer, X2: μ₂ = 92.5 minutes; σ2 = 14.5 minutes (a) Let W = x₁ + x2 be a random variable representing the total time to examine and repair the computer. Compute the mean, variance, and standard deviation of W. (Round your answers to two decimal places.) 122.10 2275.86 16.61 (b) Suppose it costs $1.50 per minute to examine the computer and $2.75 per minute to repair the computer. Then W = 1.50x1 + 2.75x2 is a random variable representing the service charges (without parts). Compute the mean, variance, and standard deviation of W. (Round your answers to two decimal places.) 70.63 2221.98 14.90 (c) The shop charges a flat rate of $1.50 per minute to examine the computer, and if no repairs are ordered, there is also an additional $50 service charge. Let L = 1.5x + 50. Compute the mean, variance, and standard deviation of L. (Round your answers to two decimal places.) μ σ Need Help? 70°F Smoke Read It Q Search esc F1 F2 F3 F4 F5 A 2 @ 3 4 W S % 25 F6 F7 6 87 & F8 E R T Y U כ D F G H F9 ☑ 6:05 PM 3/12/2025 prt sc home end insert delete F10 F11 F12 8 9 J K L Z X C V B N M 請 alt P Ո. + 11 { } [ ] alt Ctri تا backspa
く Chapter 5-Section 1 Homework X MindTap - Cengage Learning x + C webassign.net/web/Student/Assignment-Responses/submit?pos=3&dep=36701632&tags=autosave #question3874894_3 M Gmail 品 YouTube Maps 5. [-/20 Points] DETAILS MY NOTES BBUNDERSTAT12 5.1.020. ☆ B Verify it's you Finish update: All Bookmarks PRACTICE ANOTHER A computer repair shop has two work centers. The first center examines the computer to see what is wrong, and the second center repairs the computer. Let x₁ and x2 be random variables representing the lengths of time in minutes to examine a computer (✗₁) and to repair a computer (x2). Assume x and x, are independent random variables. Long-term history has shown the following times. 01 Examine computer, x₁₁ = 29.6 minutes; σ₁ = 8.1 minutes Repair computer, X2: μ₂ = 92.5 minutes; σ2 = 14.5 minutes (a) Let W = x₁ + x2 be a random variable representing the total time to examine and repair the computer. Compute the mean, variance, and standard deviation of W. (Round your answers to two decimal places.) 122.10 2275.86 16.61 (b) Suppose it costs $1.50 per minute to examine the computer and $2.75 per minute to repair the computer. Then W = 1.50x1 + 2.75x2 is a random variable representing the service charges (without parts). Compute the mean, variance, and standard deviation of W. (Round your answers to two decimal places.) 70.63 2221.98 14.90 (c) The shop charges a flat rate of $1.50 per minute to examine the computer, and if no repairs are ordered, there is also an additional $50 service charge. Let L = 1.5x + 50. Compute the mean, variance, and standard deviation of L. (Round your answers to two decimal places.) μ σ Need Help? 70°F Smoke Read It Q Search esc F1 F2 F3 F4 F5 A 2 @ 3 4 W S % 25 F6 F7 6 87 & F8 E R T Y U כ D F G H F9 ☑ 6:05 PM 3/12/2025 prt sc home end insert delete F10 F11 F12 8 9 J K L Z X C V B N M 請 alt P Ո. + 11 { } [ ] alt Ctri تا backspa
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![く
Chapter 5-Section 1 Homework X
MindTap - Cengage Learning
x +
C
webassign.net/web/Student/Assignment-Responses/submit?pos=3&dep=36701632&tags=autosave #question3874894_3
M Gmail
品
YouTube
Maps
5. [-/20 Points]
DETAILS
MY NOTES
BBUNDERSTAT12 5.1.020.
☆
B
Verify it's you
Finish update:
All Bookmarks
PRACTICE ANOTHER
A computer repair shop has two work centers. The first center examines the computer to see what is wrong, and the second center repairs the computer. Let x₁ and x2 be
random variables representing the lengths of time in minutes to examine a computer (✗₁) and to repair a computer (x2). Assume x and x, are independent random variables.
Long-term history has shown the following times.
01
Examine computer, x₁₁ = 29.6 minutes; σ₁ = 8.1 minutes
Repair computer, X2: μ₂ = 92.5 minutes; σ2 = 14.5 minutes
(a) Let W = x₁ + x2 be a random variable representing the total time to examine and repair the computer. Compute the mean, variance, and standard deviation of W.
(Round your answers to two decimal places.)
122.10
2275.86
16.61
(b) Suppose it costs $1.50 per minute to examine the computer and $2.75 per minute to repair the computer. Then W = 1.50x1 + 2.75x2 is a random variable
representing the service charges (without parts). Compute the mean, variance, and standard deviation of W. (Round your answers to two decimal places.)
70.63
2221.98
14.90
(c) The shop charges a flat rate of $1.50 per minute to examine the computer, and if no repairs are ordered, there is also an additional $50 service charge. Let L =
1.5x + 50. Compute the mean, variance, and standard deviation of L. (Round your answers to two decimal places.)
μ
σ
Need Help?
70°F
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F3
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4
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F8
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R
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9
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L
Z
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+ 11
{
}
[
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alt
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backspa](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F26527b62-3c2a-4773-b3b4-2f1bc3b1b8e0%2Fa7ca4ec1-514a-4dac-aca8-5227143aea72%2Fumfni9f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:く
Chapter 5-Section 1 Homework X
MindTap - Cengage Learning
x +
C
webassign.net/web/Student/Assignment-Responses/submit?pos=3&dep=36701632&tags=autosave #question3874894_3
M Gmail
品
YouTube
Maps
5. [-/20 Points]
DETAILS
MY NOTES
BBUNDERSTAT12 5.1.020.
☆
B
Verify it's you
Finish update:
All Bookmarks
PRACTICE ANOTHER
A computer repair shop has two work centers. The first center examines the computer to see what is wrong, and the second center repairs the computer. Let x₁ and x2 be
random variables representing the lengths of time in minutes to examine a computer (✗₁) and to repair a computer (x2). Assume x and x, are independent random variables.
Long-term history has shown the following times.
01
Examine computer, x₁₁ = 29.6 minutes; σ₁ = 8.1 minutes
Repair computer, X2: μ₂ = 92.5 minutes; σ2 = 14.5 minutes
(a) Let W = x₁ + x2 be a random variable representing the total time to examine and repair the computer. Compute the mean, variance, and standard deviation of W.
(Round your answers to two decimal places.)
122.10
2275.86
16.61
(b) Suppose it costs $1.50 per minute to examine the computer and $2.75 per minute to repair the computer. Then W = 1.50x1 + 2.75x2 is a random variable
representing the service charges (without parts). Compute the mean, variance, and standard deviation of W. (Round your answers to two decimal places.)
70.63
2221.98
14.90
(c) The shop charges a flat rate of $1.50 per minute to examine the computer, and if no repairs are ordered, there is also an additional $50 service charge. Let L =
1.5x + 50. Compute the mean, variance, and standard deviation of L. (Round your answers to two decimal places.)
μ
σ
Need Help?
70°F
Smoke
Read It
Q Search
esc
F1
F2
F3
F4
F5
A
2
@
3
4
W
S
%
25
F6
F7
6
87
&
F8
E
R
T
Y
U
כ
D
F
G
H
F9
☑
6:05 PM
3/12/2025
prt sc
home
end
insert
delete
F10
F11
F12
8
9
J
K
L
Z
X
C
V
B
N
M
請
alt
P
Ո.
+ 11
{
}
[
]
alt
Ctri
تا
backspa
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