« previous next »

Author Question: Differentiate between a positive linear relationship and a negative linear relationship between ... (Read 183 times)

Kikoku

  • Hero Member
  • *****
  • Posts: 540
on: Jun 24, 2018
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
Reply #1 on: Jun 24, 2018
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
« previous next »
 

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

How genes produce proteins that determine traits in a simple dominant-recessive relationship. How genes produce proteins that determine traits in a simple dominant-recessive relationship.
Relationship between a diagnostic label and related factor Relationship between a diagnostic label and related factor
Negative feedback mechanism. Negative feedback mechanism.
Constant velocity versus positive velocity Constant velocity versus positive velocity
The relationship between maternal age and the frequency of trisomy 21 (Down syndrome). The risk incr The relationship between maternal age and the frequency of trisomy 21 (Down syndrome). The risk incr
Diagram illustrating the difficulty encountered during the replication of the ends of linear chromos Diagram illustrating the difficulty encountered during the replication of the ends of linear chromos
Video: Allergic Rhinitis

For a complete list of videos, visit our video library