Can someone explain how to find r please. I got 45.37 and I have attched a picture of my work as well and the questions and data . The problem I am working on is problem 7.1. KEY SYMBOLSTEY TERMS, CON CEPTS, AND SYMBOLSlinear relationshipno correlation (p. 97)coefficient ofcorrelation (p. 92)prediction (p. 92)Sir Francis Galton(p. 93)bivariate distribution93)cross-proc(p. 10Spearmarcurvilinear relationshipcorrelation (p. 98)(p. 98)values of rcorre!positive correlationcoeff(p.Karl Pearson (p. 94)scatter diagram (p. 95)negative correlation(p. 97)product-momentcorrelationcoefficient (p. 100)linear te(p.PROBLEMSNote: Answers to odd-numbered questions are in Appendix C.Answers to even-numbered questions are in the Instructor's(a) Constructof the relationManual.7.1 Seven students made the following scores on two quizzes, X(b) Compute(c) What aspand Y:7.4 In Figure 7.3+.68. The 1Student:A B C D E F G3.2 7 8 6 6 5 7Score on X:8.4.9.Score on Y:X: 30 34(a) Construct a scatter diagram of the relationship betweenthese two variables. What is the direction of the relationship?(b) Compute r to two decimals using the raw-score method,(c) If the two quizzes covered the same subject matter, whatis it about the students' performance that r measures?Y: 72 7C(a) Verify,pose that Xto measure7.2 Same as Problem la-lb, except substitute the followingsociabilitydata:about theStudent:it measureH.I J K L MScore on X:7.2 1 6 5 37.5 CompareScore on Y:6 12 4 3 10the raw7.7.3 Using a 10-point scale, two managers independently rate theperformance of the same five salespeople.or Y. (ThSection 7Salesperson:Rating by first manager (Y):7.6 In most 2.ScomdPracticeA) Condtract as catter Plotuf the relationdhip loetacenthuetwo variables.Student i A B ICEFGPositivebutaCurvilinearrelationShpScore xh3Si(ナ7.451344-6.28571.957.=45.37317.61Ex-304Exy: 2767.

Answered: Image /qna-images/answer/94641924-26c1-497e-9a26-8eff0f961d19.jpg

Manual. 7.1 Seven students made the following scores on two quizzes, X and Y: 7. A B C DE FG 3 9 7 8 4 6 7 7 8 6 Student: Score on X: Score on Y: 6 5 7 (a) Construct a scatter diagram of the relationship between these two variables. What is the direction of the relationship? (b) Compute r to two decimals using the raw-score method. (c) If the two quizzes covered the same subject matter, what is it about the students' performance that r measures?

Manual. 7.1 Seven students made the following scores on two quizzes, X and Y: 7. A B C DE FG 3 9 7 8 4 6 7 7 8 6 Student: Score on X: Score on Y: 6 5 7 (a) Construct a scatter diagram of the relationship between these two variables. What is the direction of the relationship? (b) Compute r to two decimals using the raw-score method. (c) If the two quizzes covered the same subject matter, what is it about the students' performance that r measures?

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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Question

Can someone explain how to find r please. I got 45.37 and I have attched a picture of my work as well and the questions and data . The problem I am working on is problem 7.1.

KEY SYMBOLS
TEY TERMS, CON CEPTS, AND SYMBOLS
linear relationship
no correlation (p. 97)
coefficient of
correlation (p. 92)
prediction (p. 92)
Sir Francis Galton
(p. 93)
bivariate distribution
93)
cross-proc
(p. 10
Spearmar
curvilinear relationship
correlation (p. 98)
(p. 98)
values of r
corre!
positive correlation
coeff
(p.
Karl Pearson (p. 94)
scatter diagram (p. 95)
negative correlation
(p. 97)
product-moment
correlation
coefficient (p. 100)
linear te
(p.
PROBLEMS
Note: Answers to odd-numbered questions are in Appendix C.
Answers to even-numbered questions are in the Instructor's
(a) Construct
of the relation
Manual.
7.1 Seven students made the following scores on two quizzes, X
(b) Compute
(c) What asp
and Y:
7.4 In Figure 7.3
+.68. The 1
Student:
A B C D E F G
3.
2 7 8 6 6 5 7
Score on X:
8.
4.
9.
Score on Y:
X: 30 34
(a) Construct a scatter diagram of the relationship between
these two variables. What is the direction of the relationship?
(b) Compute r to two decimals using the raw-score method,
(c) If the two quizzes covered the same subject matter, what
is it about the students' performance that r measures?
Y: 72 7C
(a) Verify,
pose that X
to measure
7.2 Same as Problem la-lb, except substitute the following
sociability
data:
about the
Student:
it measure
H.
I J K L M
Score on X:
7.
2 1 6 5 3
7.5 Compare
Score on Y:
6 12 4 3 10
the raw
7.
7.3 Using a 10-point scale, two managers independently rate the
performance of the same five salespeople.
or Y. (Th
Section 7
Salesperson:
Rating by first manager (Y):
7.6 In most

2.
Scomd
Practice
A) Condtract as catter Plot
uf the relationdhip loetacen
thue
two variables.
Student i A B IC
EFG
Positive
buta
Curvilinear
relationShp
Score x
h3Si(ナ
7.45
13
44-6.2857
1.95
7.
=45.37
317.61
Ex-304
Exy: 276
7.

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