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

Define Betterment, Define Betterment An inclusion created to, or modify cr...

Define Betterment An inclusion created to, or modify created in, an investment resource, other than servicing, that is estimated to improve its predicted useful life or to improve

Statistics for people who hate statistics, what third variable might effect...

what third variable might effect fathers gpa and childs social skills

Generate samples for each distribution, Generate 1000 samples for each of t...

Generate 1000 samples for each of the following continuous random variables: (a). Exponential distribution with λ = 1.2 and λ = 2.1 (b). Normal distribution with μ = 3.1, σ

Manufacturing overhead referred to as factory overhead, Manufacturing overh...

Manufacturing overhead referred to as factory burden, factory overhead, and manufacturing support costs refers to indirect factory related costs which are incurred when a product i

Explain Book value, Explain Book value The net quantity at which an advant...

Explain Book value The net quantity at which an advantage or asset group appears on the books of account, as distinguished from its marketplace or intrinsic value where book value

Level of significance, Twenty years ago, entering male high school students...

Twenty years ago, entering male high school students of Central High could do an average of 24 pushups in 60 seconds. To see whether this remains true today, a random sample of 36

Find out revised probabilities for symptoms, This problem set consists of t...

This problem set consists of three problems and a short essay.  Each problem is worth 7 points, the essay is worth 4 points for a total of 25 points. 1.  What are the chances th

Spss, SPSS Assignment 1. Execute the following functions using SP...

SPSS Assignment 1. Execute the following functions using SPSS.  a) Enter the following data Case Age Weight Gender

Estimate the cost of producing, Consider the manufacturing system presented...

Consider the manufacturing system presented in the article by Yu and Bricker (1993). The management would like to purchase new machine tools more reliable and more high accuracy

Define BIENNIUM, Define BIENNIUM A 24-month fiscal era. In Washington, the...

Define BIENNIUM A 24-month fiscal era. In Washington, the biennium expands from July 1 of odd numbered years to June 30 of odd numbered or more years.

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