Author Question: Which of the following indicates the range of possible values of the coefficient of determination, ... (Read 44 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
Which of the following indicates the range of possible values of the coefficient of determination, r2?
  1.0  r2  1
  2.0 < r2
  3.-1  r2  1
  4.-1 < r2 < 1
  5.-1 < r2 < 0

Question 2

Of the following, which is true of Pearsons correlation coefficient, r?
 
1. The value of r does not depend
   on the units of y and x.

 
2. r = 0 indicates a perfect
   correlation between x and y.

 
3. r cannot be less than 0 or greater
   than 1.

 
4. The value of r depends on which
   of two variables is labeled x.

  5. is greater than 1.0 unless the points on a scatterplot line up exactly.



aruss1303

  • Sr. Member
  • ****
  • Posts: 314
Answer to Question 1

1

Answer to Question 2

1



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

For a complete list of videos, visit our video library