a) Describe the relationship between distance and travel time. Choose all answers that apply. O There is a somewhat weak, negative, possibly linear relationship between the distance traveled and travel time V There is a somewhat weak, positive, possibly linear relationship between the distance traveled and travel time O The clustering near the lower left corner is noteworthy O There is a moderate, positive, definite linear relationship between the distance traveled and travel time b) How would the relationship change if travel time was instead measured in hours, and distance was instead measured in kilometers? O The correlation coefficient between the two variables would be smaller O Changing the units will not change the form, direction or strength of the relationship between the two variables O The correlation coefficient between the two variables would be larger c) Correlation between travel time (in miles) and distance (in minutes) is r = 0.619. What is the correlation between travel time (in kilometers) and distance (in hours)? 0.619

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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The Coast Starlight Amtrak train runs from Seattle to Los Angeles. The scatterplot below displays the
distance between each stop (in miles) and the amount of time it takes to travel from one stop to another
(in minutes).
360-
300
240
180-
120
60
100
200
300
Distance (miles)
Travel Time (minutes)
Transcribed Image Text:The Coast Starlight Amtrak train runs from Seattle to Los Angeles. The scatterplot below displays the distance between each stop (in miles) and the amount of time it takes to travel from one stop to another (in minutes). 360- 300 240 180- 120 60 100 200 300 Distance (miles) Travel Time (minutes)
a) Describe the relationship between distance and travel time. Choose all answers that apply.
There is a somewhat weak, negative, possibly linear relationship between the distance traveled and
travel time
There is a somewhat weak, positive, possibly linear relationship between the distance traveled and
travel time
The clustering near the lower left corner is noteworthy
O There is a moderate, positive, definite linear relationship between the distance traveled and travel
time
b) How would the relationship change if travel time was instead measured in hours, and distance was
instead measured in kilometers?
O The correlation coefficient between the two variables would be smaller
Changing the units will not change the form, direction or strength of the relationship between the
two variables
O The correlation coefficient between the two variables would be larger
c) Correlation between travel time (in miles) and distance (in minutes) is r = 0.619. What is the
correlation between travel time (in kilometers) and distance (in hours)?
0.619
Transcribed Image Text:a) Describe the relationship between distance and travel time. Choose all answers that apply. There is a somewhat weak, negative, possibly linear relationship between the distance traveled and travel time There is a somewhat weak, positive, possibly linear relationship between the distance traveled and travel time The clustering near the lower left corner is noteworthy O There is a moderate, positive, definite linear relationship between the distance traveled and travel time b) How would the relationship change if travel time was instead measured in hours, and distance was instead measured in kilometers? O The correlation coefficient between the two variables would be smaller Changing the units will not change the form, direction or strength of the relationship between the two variables O The correlation coefficient between the two variables would be larger c) Correlation between travel time (in miles) and distance (in minutes) is r = 0.619. What is the correlation between travel time (in kilometers) and distance (in hours)? 0.619
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