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

Barter system, Define the barter system with examples where payment is made...

Define the barter system with examples where payment is made in kind instead of cash. A barter system whereby the payment for purchases is made in kind instead of, in cash. i.e.

Factor reversal test, factor reversal test or circfied ular test satis reve...

factor reversal test or circfied ular test satis reversal test question #Minimum 100 words accepted#

Discrete event simulation output analysis, 1. Name several entities, attrib...

1. Name several entities, attributes, activities, events, and state variables for the following systems: (a) A cafeteria (b) A grocery store (c) A laundromat (d) A fast

The owner of the finer diner submitted a proposal, The owner of the Finer D...

The owner of the Finer Diner submitted a proposal to you in hopes of selling the business to you. His asking price is $250,000. Your financial institution advises that your month

Homework, The probability a computer will boot is .08. What is the least nu...

The probability a computer will boot is .08. What is the least number needed so that the probability at least two will boot is greater than .99?

Determine the probability of coding region , Using 1 st order models shown...

Using 1 st order models shown in homework 2 solution determine the probability of coding region in frame two for DNA fragment AGTAGCTTCCAG. Use only parameters provided in the hom

Business law, LAW 2003 Assignment 1 (Winter 2012) 1. Brief the following c...

LAW 2003 Assignment 1 (Winter 2012) 1. Brief the following case: Ragoonanan v. Imperial Tobacco (from pages 587 to 595 of the Ontario Reports) on the document attached online. It’

Prepares reports on gasoline prices , The average cost of a gallon of unlea...

The average cost of a gallon of unleaded gasoline in Greater Cincinnati was reported to be $2.41 (The Cincinnati Enquirer, February 3, 2006). During periods of rapidly changing pri

Elaborate bond issue, Elaborate bond issue A reference indicating the exac...

Elaborate bond issue A reference indicating the exacting or different classification or quantity of bonds issued at a specified moment.

Assignment, All Excel output should be copied into a single Word document w...

All Excel output should be copied into a single Word document where you must enter all of your responses to the questions below. Format the document professionally so it flows well

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