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

Accounting rate of return, Ghosh Ltd is considering expanding its business ...

Ghosh Ltd is considering expanding its business and has to decide between taking on Project A or Project B. Both projects have a life of four years. Equipment is expected to have

Identification of critical data elements, Check numbers for No Neighboring ...

Check numbers for No Neighboring States with Video Gaming, 2% inflation, 4 Average Bets Numbers for 2018 Average Return -0.082 Net Income -$2,052,859 End of Year Cash $5,0

Accounting equation, goods returned by a customer Rs 2000 costing Rs 1900

goods returned by a customer Rs 2000 costing Rs 1900

Analyzing pre-collected data using spss, This is not a statistics course, b...

This is not a statistics course, but you need to conduct some analyses to help solidify your knowledge and understanding about statistical data analysis. Now you will use the ' pr

ACC 557, Glaser Services acquired 30% of the outstanding common stock of Ni...

Glaser Services acquired 30% of the outstanding common stock of Nickels Company on January 1, 2008, by paying $800,000 for the 45,000 shares. Nickels declared and paid $0.30 per sh

Agglomerative hierarchical clustering methods/procedures, Agglomerative hie...

Agglomerative hierarchical clustering methods/procedures Methods of cluster analysis that start with each individual in the separate cluster and then, in the series of steps, c

Size of the global tourism industry, how many people travel in a year

how many people travel in a year

Probability, the probability that you win a game is 0.3. if you play the ga...

the probability that you win a game is 0.3. if you play the game 20 times. what is the probability that you will win at least 8 times?

Methods of members, the A- frame is supported by a hinge at A and A roller ...

the A- frame is supported by a hinge at A and A roller at e

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

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages