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

meanings of statistics by different authors, meanings of statistics by dif...

meanings of statistics by different authors and importance of statistics in the field of Education

Profit and loss accounting, what does it mean by sales less of goods sold a...

what does it mean by sales less of goods sold and cost less of goods sold

Define appraisal, Define appraisal (1) The act of evaluating. (2) The appr...

Define appraisal (1) The act of evaluating. (2) The approximated value as a result of such measures. Talk about APPRAISE

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

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

Observe value of the appropriate test statistic, As part of a study of corp...

As part of a study of corporate employees, the Director of Human Resources for PNC wants to compare the distance travelled to work by employees at their office in downtown Edmonton

Process costing - accounting for scrap.., a company has two processes whose...

a company has two processes whose details are as follows: Materials 3000kg @ k0.30/kg, labour K120 for process 1 and material 2000kg @ k0.40/kg and labour k84 for process 2. actual

Index numbers, discuss the considerations to be born in mind when constract...

discuss the considerations to be born in mind when constracting index numbers

Historigrams and histogram, what is the difference between histotigrams and...

what is the difference between histotigrams and histograms?

What is the minimax regret and probabillity, Flifla sells tomatoes every da...

Flifla sells tomatoes every day in Suk al Marqazi, the downtown fruit and vegetable market. He finds that he can order tomatoes in crates of 25 kg and he is able to stock a maximum

Life tables, For public health purposes, the force of mortality in a popula...

For public health purposes, the force of mortality in a population is usually measured by means of such indices as crude death rate. Infant mortality rate, specific death rate at d

Write Your Message!

Name

Email id

Message

Verfication Code

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!

Submit Assignment

User Account

All Pages