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, 1. ABC produces a single product. Material A is added at t...

1. ABC produces a single product. Material A is added at the start of production and Material B at the end. Conversion is uniform throughout. Inspection before Material B is added.

Ascertain the profit & loss, Depreciation during the financial year  The...

Depreciation during the financial year  The Resources which are bought during the economical season and its determined that the Depreciation will be incurred on them @ 10% PA it

How this works, So I can send you a word problem & you van send the answers...

So I can send you a word problem & you van send the answers back in excel for me?

Intermediate, The screening test for the hep-c virus works by detecting the...

The screening test for the hep-c virus works by detecting the presence of antibodies to the virus. However, some non-HCV proteins can trigger a false positive, at a probability of

Calculate total rate, A psychologist developed a test designed to help pred...

A psychologist developed a test designed to help predict whether production-line workers in a large industry will perform satisfactorily. A test was administered to all new employe

Bill of exchange, Who can issue a bill of exchange for what purpose? Onl...

Who can issue a bill of exchange for what purpose? Only a supplier who has to get the cash from his client for the purchase which was done on credit score platform can increase

Probability, jay can remember only the first 4 digits of his friends phone ...

jay can remember only the first 4 digits of his friends phone number. he also knows that the number has 7 digits and the last digit is not a zero. if jay were to dial all of the po

Calculate - mean, how to calculate mean, median and the range on the follow...

how to calculate mean, median and the range on the following data: 15 18 23 22 21 18 14 20 25 12

Journalizing confusing transaction, How would you journalize this transacti...

How would you journalize this transaction? Purchased used truck for $6,240, paying $3,120 cash and the balance on account.

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