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

What is job costing, What is job costing? Definition of job costing, Job co...

What is job costing? Definition of job costing, Job costing usually, it is the allocation of all material, time & expenses to an individual project or job. Particularly, Jobs costi

N345, An HIV educator wishes to determine whether the method of delivering ...

An HIV educator wishes to determine whether the method of delivering teaching influences adherence with antiretroviral therapy. She decides to measure adherence as viral load (a r

Calculate and interpret, U.S. College presidents have described alcohol abu...

U.S. College presidents have described alcohol abuse as the number one problem on campus.  How common is it?  As a super crackerjack student, you conducted a survey of 17,096 stude

Absorption distributions , Absorption distributions Probability distribu...

Absorption distributions Probability distributions which represent the number of 'individuals' (such as particles) which fail to cross the speci?ed area containing the hazards o

How this works, So I can send you a word problem & you van send the answers...

So I can send you a word problem & you van send the answers back in excel for me?

Sampling, Advantages of sampling over population

Advantages of sampling over population

Violence in the Media, I need help on writing a paper about this title

I need help on writing a paper about this title

Determine the approximate vertical reactions, 1. Use the portal method to d...

1. Use the portal method to determine the approximate vertical reactions. Circles represent pinned connections. 2. A steel 2" x 3" rectangular bar is 9' long (E = 29,000ksi

What is univariate and bivariate data, Q. What is Univariate and Bivariate ...

Q. What is Univariate and Bivariate Data? Ans. Univariate data is data gathered about a single variable. Univariate studies could include a study of the amount paid by Am

Probability, what is an exclusive probability

what is an exclusive probability

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