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

Answer, Would like to know answer to gametes problem

Would like to know answer to gametes problem

Correlation coefficient for X and Y, Calculate Correlation coefficient for ...

Calculate Correlation coefficient for X and Y, Statistics Homework • Variable X x • Variable Y y • Calculate: • z-scores for all values in the variables • correlation coefficien

Hierarchical clustering , Hierarchical Clustering   Five, two-dimens...

Hierarchical Clustering   Five, two-dimensional data points are shown below: x y -0.43 1.19 -1.66 1.1

Probebility., what is probebility? and how to solve the sums of this?

what is probebility? and how to solve the sums of this?

#mean, when is mode illdefined

when is mode illdefined

Adaptive sampling design, Adaptive sampling design   The sampling de...

Adaptive sampling design   The sampling design in which the method for selecting  the sampling Units on which to make observations might rely on the observed values of the v

Four characteristics and functions of statistics, highlight four characteri...

highlight four characteristics and four functions of statistics

Quantitative research, The research should be Quantitative Research: A m...

The research should be Quantitative Research: A means for testing objective theories by examining the relationship among variables. These variables can be measured and analyzed

Define payroll accounting, It's a fact of business–if an organization has w...

It's a fact of business–if an organization has workers, it has to account for paycheck and edge advantages. In this description of paycheck bookkeeping we'll present paycheck, e

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