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

Determine the cutoff score to indicate a score, What would be the cutoff sc...

What would be the cutoff score to indicate a score that is in the top 15% of the scores on a test with a mean of 100 and a standard deviation of 15?

Individual tax accounting, need help with exercise that asks to calculate g...

need help with exercise that asks to calculate gross income, adjusted gross income and taxable income based on items1-13, which i can submit the exercise copies as soon as you tell

Evaluate the probability, Question 1: (a) 75 percent of all people in a...

Question 1: (a) 75 percent of all people in a population are vaccinated against a par-ticular disease. During an epidemic, the probability that a vaccinated person is infected

Classification of raw data with example tables, Classification of raw data ...

Classification of raw data on the basis of homogeneous characteristics

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

Job order costing, what are the procedure of job order costing

what are the procedure of job order costing

QUANTITATIVE METHODS, KINDLY ASSIST ME WITH THIS ASSIGNMENT AND FORWARD IT ...

KINDLY ASSIST ME WITH THIS ASSIGNMENT AND FORWARD IT TO ME BY 31 OCTOBER 2013.

Draw a scatter diagram relating cigarette, The following data relating ciga...

The following data relating cigarette smoking and death rates for lung cancers in 14 states in the USA. The data are based in part on records concerning 1960 cigarette tax receipts

Determine the coefficient of determination, 1. A researcher was interested ...

1. A researcher was interested lowering the high school dropout level in his county. He measured the reading level of students entering middle school (based on a standard test) and

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