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

Standard deviation, the first four moments of a distribution about the mean...

the first four moments of a distribution about the mean are 0,16,-64 and 162.what is the standard deviation ?

accounting, Fenn Museum, a nongovernmental not-for-profit organization, ha...

Fenn Museum, a nongovernmental not-for-profit organization, had the following balances in its statement of functional expenses: Education $300,000 Fundraising 250,000 Management an

Frequency, midpoint of class containing highest frequency

midpoint of class containing highest frequency

Business Research Report Proposal: Initial Research, The initial research p...

The initial research proposal will consist of the following SIX (6) items: 1. Identify a business research topic 2. Define the research questions for the identified problem or opp

What is the cumulative distribution function, The waiting time for an incom...

The waiting time for an incoming call at the front desk of mathematics Department follows an exponential distribution. During business hours, the average of the waiting times is 10

Does the claim represent the null hypothesis or the alterna., A scientist c...

A scientist claims that the mean incubation period for the eggs of a species of birds is more than 46 days.

Generally accepted accounting principles, Can the Depreciation on Assets be...

Can the Depreciation on Assets be recorded in Single Entry system? No, it cannot be possible. What do you mean by Computer Hardware? The computer is made with different co

Generate a hypothesis test , An instructor wants to determine which of his ...

An instructor wants to determine which of his students are A students and which are B students (this is a graduate course, so clearly all the students are either A or B stu

Revenue Recognition & Depreciation, Question 2 Pankratov Lakes is a new rec...

Question 2 Pankratov Lakes is a new recreational real estate development that consist of 500 Lake front and lake view lots. As a special incentive to the first 100 buyers of lake v

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