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

Time series, what are the importances of time series

what are the importances of time series

Question, In a survey of 284 smokers, 197 smokers reported that they wanted...

In a survey of 284 smokers, 197 smokers reported that they wanted to quit smoking. Compute a 90% confidence interval for the true proportion of smokers that want to quit smoking.

STATISTICS, EIGHT definition of statistics and their scholars

EIGHT definition of statistics and their scholars

Correlation analysis and coefficient, Individual Music scores Mathematics s...

Individual Music scores Mathematics scores Angela 2 8 Arthur 6 3 Peter 4 9 Mike 5 7 Barbara 7 2 Jane 7 3 Jean 2 9 Ruth 3 8 Alan 5 6 Theresa 4 7 Assess the data using a Correlation

Transitioning from gaap to ifrs, How important do you think knowledge trans...

How important do you think knowledge transfer and training will be to help in transitioning from GAAP to IFRS? Manager 1: Knowledge transfer is going to be extremely importan

What is the cumulative distribution function, The waiting time for an incom...

The waiting time for an incoming call at the front desk of mathematics Department follows an exponential distribution. During business hours, the average of the waiting times is 10

Reference number 20110907, I am not able to log in again to retrieve my ass...

I am not able to log in again to retrieve my assignment that I paid for

Tootsie roll industries, I am in need of your help again. First and foremo...

I am in need of your help again. First and foremost, I thought I had created an account, but none could be found. In any event here is my assignment. Should you decide that you

Population, Explain what is meant by population and sample

Explain what is meant by population and sample

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