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

Jovian moons more geologically active than rocky planet, Why are Jovian moo...

Why are Jovian moons more geologically active than small rocky planets? - Ices deform and melt at much lower temperatures than rock, allowing icy volcanism and tectonics at sur

Calculate its stationary probabilities, A small specialized workshop is use...

A small specialized workshop is used to perform periodic check-up on some high-tech devices. The check up is made in three stages whose durations are independent random variables w

Calculate exactly correct percentage, Study A                              ...

Study A                              Study B r = .64                          r = .77 df = 18                         df = 121 p 1. In using the data from study A to m

IFRS 9, The company acquired 50000 8% preferencd shares (with a par value o...

The company acquired 50000 8% preferencd shares (with a par value of R4 each) in cross limited on 30 june 2006 for R180000.

Project, The trial balance of the Parton Wholesale Company contained the fo...

The trial balance of the Parton Wholesale Company contained the following accounts at December 31, 2010 the end of the company’s calendar year. PARTON WHOLESALE COMPANY Trial Bala

Statistic for business, Present the survey methodology which is going to be...

Present the survey methodology which is going to be used by describing primary and secondary data collection methods, population, sampling frame and sampling method/s, sample size

Acceptance region, Acceptance Region A term related with the statistical...

Acceptance Region A term related with the statistical signi?cance tests, which provides the set of values of a test statistic for which the null hypothesis cannot rejected. Supp

What is portfolio ratio, Describe portfolio ratio, i need assignment help i...

Describe portfolio ratio, i need assignment help in portfolio ratio based questions.

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