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

Aggregate expenditure method, Problem Construct a consumer price index ...

Problem Construct a consumer price index for the information given by using  (i) Aggregate expenditure method, (ii) Family budget method. Commodities

Long term credit decision, Long Term Credit Decision In no more than o...

Long Term Credit Decision In no more than one typed page, provide a statement of your decision to lend or not lend to this company based on your interpretation of the company'

Define Agency solutions , Define Agency solutions Every condition agency,...

Define Agency solutions Every condition agency, office, board, commission, department, condition organization, or condition organization of degree, which includes all condition u

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

Genotypes are crossed ttyypp x ttyypp - Genetics Biology, Consider the gi...

Consider the given below. T _ tall is dominant to dwarf (tt). Y _ yellow seed is dominant to green seed (yy). P _ purple flower is dominant to white flower (pp). If plants wi

Estimate the expected monetary value, 3DP, a Luxembourg-based company plans...

3DP, a Luxembourg-based company plans to develop and sell highly specialized 3D printers. The cost of product development is estimated at EUR 50,000.-, irrespective of whether or n

Employee portion of medicare tax, Employee portion of Medicare tax Medi...

Employee portion of Medicare tax Medical health insurance tax is also taken out from a worker's wage or income and is equaled by participation from the company. In other terms,

Accounting and finance for managers , From the following cost, production...

From the following cost, production and sales data of Decors Motor Ltd., prepare comparative income statement for three years under (i) absorption costing method, and (ii) marginal

Metaphor, writing a Introduction on Metaphor

writing a Introduction on Metaphor

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