Explain correlation coefficient, Basic Statistics

Assignment Help:

Q. Explain Correlation Coefficient?

Ans.

The strength of a linear correlation is determined by how precisely the y variable shifts as the x variable increases. The two pictures on the right show data with a higher correlation than those on the left.

1619_Explain Correlation Coefficient.png

Data is said to have a perfect correlation if all points lie exactly along a line.

259_Explain Correlation Coefficient1.gif

The correlation coefficient, r, is a measure of the strength of the correlation. It is a number between 1 and +1. +1 indicates a perfect positive correlation and 1 indicated a perfect negative correlation. If r is positive, then there is a positive correlation between the two variables. If r is negative, there is a negative correlation between the variables.


Related Discussions:- Explain correlation coefficient

Tools., what do you mean by correct and remedy the equipment trouble as ins...

what do you mean by correct and remedy the equipment trouble as instructed by the expert.

Post-retirement health insurance, Post-retirement health insurance Some...

Post-retirement health insurance Some companies continue to provide insurance policy to workers after they have on. This one person benefit is considered to be part of the sett

Histogram, difference between histogram and historigram

difference between histogram and historigram

Allowable moving costs , Allowable moving costs Except as mentioned in Sub...

Allowable moving costs Except as mentioned in Subsection 60.20.20 and within certain restrictions, allowable moving costs involve the prices associated with moving family products

Benefits of financial sales, Expertsmind.com offering Uses of Financial Ac...

Expertsmind.com offering Uses of Financial Accounting Financial Accounting Sales performs important and useful part by creating the details for offering solutions to many conc

INTRODUCTION TO STASTICS, Let a and b be constants and le yi=axi+b for i=1,...

Let a and b be constants and le yi=axi+b for i=1,2,...n. W HAT IS THE RELATION SHIP BETWEEN mean and variancees of X and Y ?

Find out price, A pharmaceutical company is a monopoly in Alzheimer's disea...

A pharmaceutical company is a monopoly in Alzheimer's disease drugs and faces the following inverse demand curve: , where α is the level of advertising. Its marginal production

Identification of null and alternative hypotheses, A politician claims that...

A politician claims that the mean salary for managers in his state is more than national mean $82,000.  The salaries (in dollars) for a random sample of 30 managers in the state ar

Definition of capitalization, Definition of capitalization is termed or sho...

Definition of capitalization is termed or shown as a process of recording & classifying the expenditure on assets in a balance sheet. Can you explain me this term more.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd