Author Question: Differentiate between a positive linear relationship and a negative linear relationship between ... (Read 169 times)

Kikoku

  • Hero Member
  • *****
  • Posts: 540
Differentiate between a positive linear relationship and a negative linear relationship between variables.

Question 2

What is a scatter diagram, and for what kind of data is it a useful descriptive device?



mbcrismon

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

In a positive linear relationship, y tends to increase linearly with increases in x. In a negative linear relationship, y tends to decrease linearly as x increases.

Answer to Question 2

A scatter diagram is a plot in which each point represents a pair of known or observed values of x and y. The variables are represented on the horizontal (x) and vertical (y) axes. The scatter diagram is useful in examining whether the variables might be related to each other in some way.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

For a complete list of videos, visit our video library