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

Cost accounting, Problems and solutions in marginal costing

Problems and solutions in marginal costing

Determine probability of coding state at the last nucleotide, For the zero ...

For the zero order hidden Markov model defined in homework 2 determine probability of coding state at the last nucleotide of the sequence AGTAG. Use parameters provided in the home

Statistics competency scores, A professor is interested in whether there is...

A professor is interested in whether there is a gap in counseling students' statistics competency scores between 1) those who have never taken any statistics course, 2) those who h

Homework, Problems 15. An art professor was interested in seeing what si...

Problems 15. An art professor was interested in seeing what size group is best to prime the pump so to speak to encourage strangers to gather together in front of various exhibi

Data statistics in decision making, I need help with mystatlab assignment, ...

I need help with mystatlab assignment, can anyone assist me?

Determine the coefficient of determination, A researcher is interested in t...

A researcher is interested in the relationship between fathers' performance in high school and their children's social skills.  She obtains the high school transcripts of fathers a

Differentiate between sample and population, Ask question #Midifferentiate ...

Ask question #Midifferentiate between sample and populationnimum 100 words accepted#

Do a full regression analysis , #questioAssessment Part 2 (70%) You may un...

#questioAssessment Part 2 (70%) You may undertake the analysis of one of the following three case studies: (a) Crime (Minitab project file: CRIM

Calculate the maximum hourly rate, Question: Sharp Discounts Who...

Question: Sharp Discounts Wholesale Club has two service desks with one server at each desk.  There is one desk at each entrance of the store.  Customers arrive at each

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