(b) Use a calculator to verify that Ex = 150.4, Ex² = 3251.86, Ey = 250, Ey² = 10630 and Exy = 5484.8. Compute r. (Round your answer to four decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer. Given our value of r, y should tend to decrease as x increases. Given our value of r, we can not draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to remain constant as x increases. Given our value of r, y should tend to increase as x increases.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.5: Descriptive Modeling And Accuracy
Problem 29PFA
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Content
A Math 2250 Unit 4 Post Test Re X
b My Questions | bartleby
x +
->
webassign.net/web/Student/Assignment-Responses/last?dep=24515412
Clear
75
70
Delete
65
60
Fill
55
50
45
40
No
Solution
35
30
25
20
15
Help
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
WebAssign. Graphing Tool
Then visualize the line you think best fits the data.
(b) Use a calculator to verify that Ex
150.4, Σχ?
= 3251.86, Ey = 250, Ey² = 10630 and Exy
= 5484.8.
%D
%3D
Compute r. (Round your answer to four decimal places.)
As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer.
Given our value of r, y should tend to decrease as x increases.
Given our value of r, we can not draw any conclusions for the behavior of y as x increases.
Given our value of r, y should tend to remain constant as x increases.
Given our value of r, y should tend to increase as x increases.
Transcribed Image Text:Content A Math 2250 Unit 4 Post Test Re X b My Questions | bartleby x + -> webassign.net/web/Student/Assignment-Responses/last?dep=24515412 Clear 75 70 Delete 65 60 Fill 55 50 45 40 No Solution 35 30 25 20 15 Help 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 WebAssign. Graphing Tool Then visualize the line you think best fits the data. (b) Use a calculator to verify that Ex 150.4, Σχ? = 3251.86, Ey = 250, Ey² = 10630 and Exy = 5484.8. %D %3D Compute r. (Round your answer to four decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer. Given our value of r, y should tend to decrease as x increases. Given our value of r, we can not draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to remain constant as x increases. Given our value of r, y should tend to increase as x increases.
Content
A Math 2250 Unit 4 Post Test Re X
b My Questions | bartleby
x +
webassign.net/web/Student/Assignment-Responses/last?dep=24515412
TVILI OTL
Do larger universities tend to have more property crime? University crime statistics are affected by a variety of factors. The surrounding community, accessibility given to outside visitors, and many
other factors influence crime rate. Let x be a variable that represents student enrollment (in thousands) on a university campus, and let y be a variable that represents the number of burglaries in a
year on the university campus. A random sample of n = 8 universities in California gave the following information about enrollments and annual burglary incidents.
X
11.3
28.8
24.5
14.3
7.5
27.7
16.2
20.1
y
26
77
39
23
15
30
15
25
n USE SALT
(a) Make a scatter diagram of the data.
Graph Layers
«
Clear All
75
After you add an object to the graph you
70
elete
can use Graph Layers to view and edit its
65
properties.
60
Fill
55
50
45
40
No
Solution
35
30
25
20
15
Help
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
WebAssign. Graphing Tool
Then visualize the line you think best fits the data.
Transcribed Image Text:Content A Math 2250 Unit 4 Post Test Re X b My Questions | bartleby x + webassign.net/web/Student/Assignment-Responses/last?dep=24515412 TVILI OTL Do larger universities tend to have more property crime? University crime statistics are affected by a variety of factors. The surrounding community, accessibility given to outside visitors, and many other factors influence crime rate. Let x be a variable that represents student enrollment (in thousands) on a university campus, and let y be a variable that represents the number of burglaries in a year on the university campus. A random sample of n = 8 universities in California gave the following information about enrollments and annual burglary incidents. X 11.3 28.8 24.5 14.3 7.5 27.7 16.2 20.1 y 26 77 39 23 15 30 15 25 n USE SALT (a) Make a scatter diagram of the data. Graph Layers « Clear All 75 After you add an object to the graph you 70 elete can use Graph Layers to view and edit its 65 properties. 60 Fill 55 50 45 40 No Solution 35 30 25 20 15 Help 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 WebAssign. Graphing Tool Then visualize the line you think best fits the data.
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