Janice and Paul did a study on feelings of stress and life satisfaction. Participants completed a measure on how stressed they were feeling (on a 1 to 30 scale) and a measure of how satisfied they felt with their lives (measured on a 1 to 10 scale). The table below indicates the participants' scores. Using this data, answer the following questions: Student Student GPA Motivation Joe 2.0 50 Lisa | 2.0 48 Mary 2.0 100 Sam 2.0 12 Sally 2.1 77 Tony 2.2 66 Katy 2.2 69 Deana 2.3 34 Jenny 2.4 32 Roberto 2.5 58 Sarah 2.6 30 Jennifer 2.6 78 Camilo 2.7 76 Gregory 3.0 87 Thomas 3.1 84 Cindy 3.2 75 Martha 3.6 83 Steve 3.8 90 Jamell 3.8 90 Tammie 4.0 98 1) Draw a scatter plot graph to identify the relationship between students' achievement motivation and GPA. 2) Calculate the sample mean for each variable and sample covariance. Interpret the results. 3) Find the sample standard deviation for each variable and the sample coefficient of correlation. Interpret the results.

Janice and Paul did a study on feelings of stress and life satisfaction. Participants completed a measure on how stressed they were feeling (on a 1 to 30 scale) and a measure of how satisfied they felt with their lives (measured on a 1 to 10 scale). The table below indicates the participants' scores. Using this data, answer the following questions: Student Student GPA Motivation Joe 2.0 50 Lisa | 2.0 48 Mary 2.0 100 Sam 2.0 12 Sally 2.1 77 Tony 2.2 66 Katy 2.2 69 Deana 2.3 34 Jenny 2.4 32 Roberto 2.5 58 Sarah 2.6 30 Jennifer 2.6 78 Camilo 2.7 76 Gregory 3.0 87 Thomas 3.1 84 Cindy 3.2 75 Martha 3.6 83 Steve 3.8 90 Jamell 3.8 90 Tammie 4.0 98 1) Draw a scatter plot graph to identify the relationship between students' achievement motivation and GPA. 2) Calculate the sample mean for each variable and sample covariance. Interpret the results. 3) Find the sample standard deviation for each variable and the sample coefficient of correlation. Interpret the results.

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

Janice and Paul did a study on feelings of stress and life satisfaction. Participants completed a
measure on how stressed they were feeling
(on a 1 to 30 scale) and a
measure
of how satisfied they felt
with their lives (measured on a 1 to 10 scale).
The table below
indicates the participants' scores. Using this data, answer the following questions:
Student
Student GPA
Motivation
Joe
2.0
50
Lisa
2.0
48
Mary
2.0
100
Sam
2.0
12
Sally
2.1
77
Tony
2.2
66
Katy
2.2
69
Deana
2.3
34
Jenny
2.4
32
Roberto
2.5
58
Sarah
2.6
30
Jennifer
2.6
78
Camilo
2.7
76
Gregory
3.0
87
Thomas
3.1
84
Cindy
3.2
75
Martha
3.6
83
Steve
3.8
90
Jamell
3.8
90
Tammie
4.0
98
1) Draw a scatter plot graph to identify the relationship between students' achievement
motivation and GPA.
2) Calculate the sample mean for each variable and sample covariance. Interpret the
results.
3) Find the sample standard deviation for each variable and the sample coefficient of
correlation. Interpret the results.

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