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

Estimate the probability , The Video Club Martin rents movies at "regular p...

The Video Club Martin rents movies at "regular price" andat  "half price". Usually if the films are regularly priced one day, they will be at regular price the next day with probab

Statistics in plural and singular form, how to deffine statistics in plura...

how to deffine statistics in plural and singilar form

What is accounting system , The methods and records established to recogniz...

The methods and records established to recognize, set up, evaluate, move, record, and report the state’s purchases and to maintain responsibility for its obligations and resources

Components of time series, What are the components of time series? Bring ou...

What are the components of time series? Bring out the significance of moving average in analysing a time series and point out its limitations

Confidence interval for the mean.., How to start solving the null hypothesi...

How to start solving the null hypothesis that the mean daily caloric intake in the adult population of a rural county is 1800 calories. A sample of 400 had a mean of 1785 and SD 24

Calculate the mean value and variance, 1. Generate 1000 samples for each of...

1. Generate 1000 samples for each of the following discrete random variables: (a). Binomial distribution with n=40, p=0.7, and distr. with n=50, p=0.5 (b). Geometric distribu

Assignment, i want you to make my buisiness statistics assignment

i want you to make my buisiness statistics assignment

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