Correlation and regression, Basic Statistics

Assignment Help:

The square of the sample correlation coefficient is typically denoted r2 and called the coefficient of determination. It estimates the fraction of the variance in Y that is explained by X in a simple linear regression. So if we have the observed dataset {y1,...yn} and the fitted dataset {f1,...fn}, and we denote the fitted dataset {f1,...fn} with {y1,...yn}, then as a starting point the total variation in the Yi around their average value can be decomposed as follows

Related Discussions:- Correlation and regression

Explain the attribute accounting, Explain the Attribute Accounting Plann...

Explain the Attribute Accounting Planning the accounting on foundation Producing, Explanation and outlining for customers is an art and if we consider as per technology, the sig

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

Analyse resources and accountability, The unfortunately-named (and fictitio...

The unfortunately-named (and fictitious) town of Avalanche, Utah maintains a vibrant and growing ski industry. As Director of Avalanche's search-and-rescue operations, you are alw

Sampling, What is the sampling and it importance in daily routain life. Exp...

What is the sampling and it importance in daily routain life. Explain stratify sampling

Arithmetic mean, How do I find the mean when the question is in a table for...

How do I find the mean when the question is in a table format?2 rows with 8 columns, Do I name them X and Y then do them?

Karl pearson''''s coefficient, some examples of karl coefficient.

some examples of karl coefficient.

QT, Following is the trend equation for a time series data on a monthly bas...

Following is the trend equation for a time series data on a monthly basis for years 2007 to 2009: Y=2.375+0.895X. Find Y for 2nd quarter of 2010.

Automatic interaction detector (aid), Automatic interaction detector (AID) ...

Automatic interaction detector (AID) A method or the technique which uses a set of categorical explanatory variables to divide data into the groups which are relatively homoge

Quantitative methods, which method is better for new product to gather the ...

which method is better for new product to gather the information they need,primary data or secondary data?

Correlation analysis and coefficient, Individual Music scores Mathematics s...

Individual Music scores Mathematics scores Angela 2 8 Arthur 6 3 Peter 4 9 Mike 5 7 Barbara 7 2 Jane 7 3 Jean 2 9 Ruth 3 8 Alan 5 6 Theresa 4 7 Assess the data using a Correlation

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages