4. Interpret the given scatterplots (Shape (form), Trend (direction), and Variation (strength) based on a scatter plot) Scatterplot for quality characteristic XXX E b. De Scatterplot of success vs length

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

lt7 answer #4

Learning Tasks
1. Cite three examples of two variables that are positively correlated and three bivariate data that are negatively
correlated. Explain.
2. Sketch the scatter plot that shows:
a. Positive correlation
b. Negative correlation'
C. Zero correlation
3. Construct the scatterplots for the following bivariate data:
a.
b.
Age of
person, in
years
Weight, in
kg
Age of car,
in years
Mileage, in
km/liter
11 12 13 14 15
40
STATISTICS AND PROBABILITY
(Week 5)
42
0.5 1
16
38
35
1.5 2
10
12
45
3
16 17 18 19 20
51 48
4
12
4.5
11
Imagine that there are only two points in a scatterplot.
7. How do you position these points so that the correlation is/has:
48
5
a. Annual income of the family and floor area of the residence house
b. Age and price of a car
c. Gross national product and level of technology of a country
d. Age and reaction time of persons over 18 years of age
e. Yearly income and number of years of schooling of company owners
50 47
6
10 11
4. Interpret the given scatterplots (Shape (form), Trend (direction), and Variation (strength) based on a scatter plot)
Scatterplot for quality characterisic XXX
Scatterplot of success vs length
7
8
a.
b.
5. For each case, determine the two variables and tell whether the relationship is positive or negative.
a. The more time is spent in studying his lessons, the higher is the average grade of Nelson.
b. If the population of fox in a forest increases, the number of deer decreases.
C. The more students enroll in a school, the more teachers are needed.
d. As a person ages, his memory decreases.
e. The more workers are hired to paint the whole school, the sooner the job is done.
6. Determine whether the following bivariate data are correlated or not. If they are correlated, tell the direction of
the association. Evaluate whether the correlation is most likely strong or weak.
a. Positive?
b. Negative?
C. No correlation?
8. How do you describe the strength of the relationship between the points that are positively or negatively
correlated?
Transcribed Image Text:Learning Tasks 1. Cite three examples of two variables that are positively correlated and three bivariate data that are negatively correlated. Explain. 2. Sketch the scatter plot that shows: a. Positive correlation b. Negative correlation' C. Zero correlation 3. Construct the scatterplots for the following bivariate data: a. b. Age of person, in years Weight, in kg Age of car, in years Mileage, in km/liter 11 12 13 14 15 40 STATISTICS AND PROBABILITY (Week 5) 42 0.5 1 16 38 35 1.5 2 10 12 45 3 16 17 18 19 20 51 48 4 12 4.5 11 Imagine that there are only two points in a scatterplot. 7. How do you position these points so that the correlation is/has: 48 5 a. Annual income of the family and floor area of the residence house b. Age and price of a car c. Gross national product and level of technology of a country d. Age and reaction time of persons over 18 years of age e. Yearly income and number of years of schooling of company owners 50 47 6 10 11 4. Interpret the given scatterplots (Shape (form), Trend (direction), and Variation (strength) based on a scatter plot) Scatterplot for quality characterisic XXX Scatterplot of success vs length 7 8 a. b. 5. For each case, determine the two variables and tell whether the relationship is positive or negative. a. The more time is spent in studying his lessons, the higher is the average grade of Nelson. b. If the population of fox in a forest increases, the number of deer decreases. C. The more students enroll in a school, the more teachers are needed. d. As a person ages, his memory decreases. e. The more workers are hired to paint the whole school, the sooner the job is done. 6. Determine whether the following bivariate data are correlated or not. If they are correlated, tell the direction of the association. Evaluate whether the correlation is most likely strong or weak. a. Positive? b. Negative? C. No correlation? 8. How do you describe the strength of the relationship between the points that are positively or negatively correlated?
Expert Solution
steps

Step by step

Solved in 4 steps

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman