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

Bunco toss, The game of "Bunco" is played with three standard dice. "Bunco"...

The game of "Bunco" is played with three standard dice. "Bunco" occurs when all three dice show the same number of spots. What is the probability of tossing a "Bunco" on the first

Ploblem, free hand curve to measure secular trend

free hand curve to measure secular trend

Accounting for inflation, Accounting for inflation Inflation sales is a ter...

Accounting for inflation Inflation sales is a term reporting a range of sales systems designed to correct problems that comes from traditional cost sales in the use of inflation. I

Spatial working memory , Preamble For the assignment you have been give...

Preamble For the assignment you have been given brief background details of a research project and you are required to produce a portfolio of short reports. Portfolios are to b

Read the passage below. What kind of variables are these — n, To examine a ...

To examine a program for educating health professionals in a sports injury clinic about the importance of keeping detailed medical records, a researcher does a controlled trial i

Clearance pattern, Clearance pattern The proportion of the entire amount d...

Clearance pattern The proportion of the entire amount disbursed that is debited alongside the state''s bank account every day after the disbursements,

Statistical hypotheses - anova, Your company operates a machine shop, and, ...

Your company operates a machine shop, and, having heard you had experience in statistics and design of experiments, consulted you for your opinion on an experiment they want to run

Sampling, Advantages of sampling over population

Advantages of sampling over population

find the standard deviation, Research Question: Percentage of student...

Research Question: Percentage of students who drank a can, bottle, or glass of soda or pop (not including diet soda or diet pop) at least 1 time per day during the seven days

Distinction between management and financial accounting, Distinction betwee...

Distinction between Management and Financial Accounting The variations between control sales and financial sales include Control sales provides details to individuals within a

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