You are the foreman of the Bar-S cattle ranch in Colorado. A neighboringranch has calves for sale, and you are going to buy some calves to add tothe Bar-S herd. How much should a healthy calf weigh? Let x be the age ofthe calf (in weeks), and let y be the weight of the calf (in kilograms).2312162615036y | 454870100200A USE SALTComplete parts (a) through (e), given Ex = 95, Ey = 613, Ex²2385, Σy2%3D= 81,729, Exy = 13,774, and r - 0.9918.(a) Draw a scatter diagram displaying the data.210Graph Layers200190After you add an object to the graph you180can use Graph Layers to view and edit its170properties.160Fill150140130120110100NoSolution908070605040+30O Help20253035101540WebAssign. Graphing Tool(b) Verify the given sums Ex, Ey, Ex², Ey², Exy, and the value of thesample correlation coefficient r. (Round your value for r to four decimalplaces.)Ex =Ey =Ex² =Ey? =Exy =(c) Find x, and y. Then find the equation of the least-squares line ŷ = a+ bx. (Round your answers to four decimal places.)x =y =ŷ = (d) Graph the least-squares line. Be sure to plot the point (x, y) as apoint on the line.y200200아150아150-100아10050501020304010203040yy200아2001501501001005050X1020304010203040(e) Find the value of the coefficient of determination r2. Whatpercentage of the variation in y can be explained by the correspondingvariation in x and the least-squares line? What percentage isunexplained? (Round your answer for r2 to four decimal places. Roundyour answers for the percentages to two decimal place.)12 =explainedunexplained%(f) The calves you want to buy are 11 weeks old. What does the least-squares line predict for a healthy weight? (Round your answer to twodecimal places.)kg

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You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). 3 12 16 26 150 36 200 45 48 70 100 A USE SALT Complete parts (a) through (e), given Ex = 95, Ey = 613, Ex2 = 2385, Ey2 = 81,729, Exy = 13,774, andr = 0.9918. (a) Draw a scatter diagram displaying the data. 210 Graph Layers 200 After you add an object to the graph you can use Graph Layers to view and edit its 190 180 properties. 160 Fill 140 130 120 110 No Solution 90 80 70 60 40 O Hele WebAssign. Graphing Tool (b) Verify the given sums Ex, Ey, Ex², £y², £xy, and the value of the sample correlation coefficient r. (Round your value forr to four decimal places.) Ex = Ey = Ex² = Ey? - Σxy (c) Find x, and y. Then find the equation of the least-squares line 9 = a + bx. (Round your answers to four decimal places.) y3=

You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). 3 12 16 26 150 36 200 45 48 70 100 A USE SALT Complete parts (a) through (e), given Ex = 95, Ey = 613, Ex2 = 2385, Ey2 = 81,729, Exy = 13,774, andr = 0.9918. (a) Draw a scatter diagram displaying the data. 210 Graph Layers 200 After you add an object to the graph you can use Graph Layers to view and edit its 190 180 properties. 160 Fill 140 130 120 110 No Solution 90 80 70 60 40 O Hele WebAssign. Graphing Tool (b) Verify the given sums Ex, Ey, Ex², £y², £xy, and the value of the sample correlation coefficient r. (Round your value forr to four decimal places.) Ex = Ey = Ex² = Ey? - Σxy (c) Find x, and y. Then find the equation of the least-squares line 9 = a + bx. (Round your answers to four decimal places.) y3=

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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Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.

Topic Video

Question

You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring
ranch has calves for sale, and you are going to buy some calves to add to
the Bar-S herd. How much should a healthy calf weigh? Let x be the age of
the calf (in weeks), and let y be the weight of the calf (in kilograms).
2
3
12
16
26
150
36
y | 45
48
70
100
200
A USE SALT
Complete parts (a) through (e), given Ex = 95, Ey = 613, Ex²
2385, Σy2
%3D
= 81,729, Exy = 13,774, and r - 0.9918.
(a) Draw a scatter diagram displaying the data.
210
Graph Layers
200
190
After you add an object to the graph you
180
can use Graph Layers to view and edit its
170
properties.
160
Fill
150
140
130
120
110
100
No
Solution
90
80
70
60
50
40
+30
O Help
20
25
30
35
10
15
40
WebAssign. Graphing Tool
(b) Verify the given sums Ex, Ey, Ex², Ey², Exy, and the value of the
sample correlation coefficient r. (Round your value for r to four decimal
places.)
Ex =
Ey =
Ex² =
Ey? =
Exy =
(c) Find x, and y. Then find the equation of the least-squares line ŷ = a
+ bx. (Round your answers to four decimal places.)
x =
y =
ŷ =

(d) Graph the least-squares line. Be sure to plot the point (x, y) as a
point on the line.
y
200
200아
150아
150-
100아
100
50
50
10
20
30
40
10
20
30
40
y
y
200아
200
150
150
100
100
50
50
X
10
20
30
40
10
20
30
40
(e) Find the value of the coefficient of determination r2. What
percentage of the variation in y can be explained by the corresponding
variation in x and the least-squares line? What percentage is
unexplained? (Round your answer for r2 to four decimal places. Round
your answers for the percentages to two decimal place.)
12 =
explained
unexplained
%
(f) The calves you want to buy are 11 weeks old. What does the least-
squares line predict for a healthy weight? (Round your answer to two
decimal places.)
kg

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You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 3 3 12 16 26 36 y 42 50 71 100 150 200 Complete parts (a) through (e), given Σx = 96, Σy = 613, Σx2 = 2390, Σy2 = 81,805, Σxy = 13,828, and r ≈ 0.993. (a) Draw a scatter diagram displaying the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx = Σy = Σx2 = Σy2 = Σxy = r = (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your…
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You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 3 4 12 16 26 36 y 37 46 77 100 150 200 Complete parts (a) through (e), given Σx = 97, Σy = 610, Σx2 = 2397, Σy2 = 81,914, Σxy = 13,919, and r ≈ 0.999. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx = ? Σy = ? Σx2 = ? Σy2 = ? Σxy = ? r = ? (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) x =? y =? y =?+?x (e) Find the value of the coefficient of determination r2. What percentage of the variation in y can be…
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 3 3 9 16 26 36 y 47 51 77 100 150 200 Complete parts (a) through (e), given Σx = 93, Σy = 625, Σx2 = 2327, Σy2 = 83,239, Σxy = 13,687, and r ≈ 0.998. Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) Find the value of the coefficient of determination r2. What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained?…