n(Σxy) - (Σχ)(Σy) VnEx - (Σ] [ nEy? - (Ey}]
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
![A. Describe the strength and direction of correlation of the following pairs of variables.
Complete the table bellows and compute the value of correlation coefficient (r). Using
the formula ---
r=
n(Exy)-(Ex)(Ey)
√InEx²-(Ex)²] [nEy²-(Ey)²]
2. It is hypothesized that the number of hours that a student studies (X) is related to the
examination grade (Y) obtained. The following are data obtained from ten students.
Determine if there is a relationship between the two variables.
Baby
X
Y
A
8
56
B
5
44
C
11
79
T
D
13
72
E
10
70
F
5
54
G
18
94
H
15
85
J
2
8
33
65](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcb00a801-a45a-4ab6-a409-ae44f120c32a%2F43996b54-4b47-4b8f-ab8d-1707ee395bc2%2Fh5ohmob_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A. Describe the strength and direction of correlation of the following pairs of variables.
Complete the table bellows and compute the value of correlation coefficient (r). Using
the formula ---
r=
n(Exy)-(Ex)(Ey)
√InEx²-(Ex)²] [nEy²-(Ey)²]
2. It is hypothesized that the number of hours that a student studies (X) is related to the
examination grade (Y) obtained. The following are data obtained from ten students.
Determine if there is a relationship between the two variables.
Baby
X
Y
A
8
56
B
5
44
C
11
79
T
D
13
72
E
10
70
F
5
54
G
18
94
H
15
85
J
2
8
33
65
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman