18. Correlation and covariance Suppose two random variables X and Y have a covariance of -100,000 and a correlation of -0.21. Which of the following can we say about the strength of the relationship between the two variables? Pick ONE option The two variables have (practically speaking) no relationship The two variables have a moderate positive (direct) relationship The two variables have a moderate negative (inverse) relationship The two variables have an extremely strong positive (direct) relationship The two variables have an extremely strong negative (inverse) relationshin

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
icon
Related questions
Question
18. Correlation and covariance
Suppose two random variables X and Y have a covariance of -100,000 and a correlation of -0.21. Which of the following can we say about the strength of the relationship between the two variables?
Pick ONE option
The two variables have (practically speaking) no relationship
The two variables have a moderate positive (direct) relationship
The two variables have a moderate negative (inverse) relationship
The two variables have an extremely strong positive (direct) relationship
The two variables have an extremely strong negative (inverse) relationship
Transcribed Image Text:18. Correlation and covariance Suppose two random variables X and Y have a covariance of -100,000 and a correlation of -0.21. Which of the following can we say about the strength of the relationship between the two variables? Pick ONE option The two variables have (practically speaking) no relationship The two variables have a moderate positive (direct) relationship The two variables have a moderate negative (inverse) relationship The two variables have an extremely strong positive (direct) relationship The two variables have an extremely strong negative (inverse) relationship
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt