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

CHI-SQUARE, proof that the square of a normal distribution will give a chi-...

proof that the square of a normal distribution will give a chi-square

Determining the sample size for a confidence interval, 1. In your own words...

1. In your own words explain the difference between a point estimate and an interval estimate of a parameter? Which is better? Why?  2. What information is necessary to calculat

Amplification, Amplification is the process by which the magnitudes of the ...

Amplification is the process by which the magnitudes of the variable quantity is increasing, especially the magnitude of voltage, current or power, without changing any other quant

Researching People:Patterns and Trends., Hi I have done my report based on ...

Hi I have done my report based on SPSS data but need a help for deeper analyzing and correcting this what I have already done. Would you be able to help me and if so how much would

Calculate the probability , In the 2009 Season, the Toronto Blue Jays finis...

In the 2009 Season, the Toronto Blue Jays finished the season with a record of 75-87. In 47 of those games, both the offense and defense performed adequately, and in 42 of them, ne

Calculate the probability of company, a)  The US Food and Drug Administrati...

a)  The US Food and Drug Administration has veto power over the choice of drug names. In 2004, it used this power regularly, rejecting 36% of the names proposed by companies for re

Marginal and absorption costing, the guinegog is a trader in portable cd-ma...

the guinegog is a trader in portable cd-man. His budgeted output is 5000 units per quarter. The following data was available for the year 1998: Direct labour @ $6 Direct material @

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