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

Annual breakeven point, Hanks Western Wear is a western hat retailer in Lub...

Hanks Western Wear is a western hat retailer in Lubbock, TX.  Though Hanks carries various styles of western hats, every hat has approximately the similar price and invoice (purcha

Define appraisal, Define appraisal (1) The act of evaluating. (2) The appr...

Define appraisal (1) The act of evaluating. (2) The approximated value as a result of such measures. Talk about APPRAISE

Cost accounting, wat is cost accounting and wats its scope ?

wat is cost accounting and wats its scope ?

Probability, Mike sells on the average 15 newspapers per week (Monday – Fri...

Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers

Stability Criterion, Stability Criterion A survey of periodic table caref...

Stability Criterion A survey of periodic table carefully reveals that those elements in which N / Z = 1 or 1.6 are stable. Amongst these, the elements having even N and even Z ar

Computing, compute and interpret sample covariance for the data

compute and interpret sample covariance for the data

Cost accounting, Job Order Gosting ln an attempt to conceal a thefi of fund...

Job Order Gosting ln an attempt to conceal a thefi of funds, Kaito Kid, controller of Shinichi Products, lnc. placed a bomb in the company s record vault. The ensuing explosion lef

Writing Appropriate Null and Alternative Hypotheses, For this assignment, y...

For this assignment, you will practice creating null and alternative hypotheses of difference based on the presented scenarios. To complete this assignment, consider the three scen

Measures of dispersion, if a series of three observations has a mean andd m...

if a series of three observations has a mean andd median of 4 and mean absolute deviation of 4/3. what is the series

Homework, I will need to upload the question sheets.

I will need to upload the question sheets.

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