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

Cost accounting question, LO.1 (Activity analysis) The Raleigh plant manage...

LO.1 (Activity analysis) The Raleigh plant manager of Allentown Corp. has noticed the plant frequently changes the schedule on its production line. He has gathered the following in

GENERAL ENTRY PROBLEM, could you please tell meaning of credit and debit no...

could you please tell meaning of credit and debit notes in terms of intercompany transactions.

Assignment, i want you to make my buisiness statistics assignment

i want you to make my buisiness statistics assignment

Describe sample space for experiment, The elevator in the Math and Computer...

The elevator in the Math and Computer Building can stop at one of six ?oors. Four riders get on the elevator at the ?rst ?oor and the elevator heads up. Each rider picks a ?oor at

State the model and apply t-test, Studies have linked brain size in infants...

Studies have linked brain size in infants and toddlers to a number of future ailments, including autism. One study looked at the brain sizes of 30 autistic boys and 12 nonautistic

Draw concerning the effectiveness of the medications, A testing organizatio...

A testing organization is evaluating the effectiveness of sinus relief tablets, Relief and SineOut.  As part of the analysis the organization collects 44 sinus sufferers and random

Data analysis, S&V Industries manufactures book cases. Different sizes of c...

S&V Industries manufactures book cases. Different sizes of cases are kept in inventory. The company has 80 man-hours and 36 pounds of wood available each day. 2 pounds of wood are

Multiple linear regression, #multiple linear regression of y on x1 & x2 fro...

#multiple linear regression of y on x1 & x2 from data relating to 3 variables i.e y=4,6,77,9,13,15 x1=15,12,8,6,4,8 x2=30,24,20,14,10,4

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

Linear programming., what are the requirements of linear programming?

what are the requirements of linear programming?

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