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

The correlation coefficient to identify collocations, Would there be a poss...

Would there be a possibility to use the correlation coefficient to identify collocations? Compare with the Chi2 test. • How could we maybe do that?

Measure of central tendency, What is sampling fluctuation

What is sampling fluctuation

Electric fields, 2. Two disks, each of radius 10.0 cm, are charged so that ...

2. Two disks, each of radius 10.0 cm, are charged so that one has a charge of +10.0 nC and the other has a charge of -10.0 nC. The disks are then placed with their flat faces facin

Cost accounting, What is the journal entry for starting and completing 1912...

What is the journal entry for starting and completing 1912 puzzles (in units)

Time series, what are the importances of time series

what are the importances of time series

Probability distribution, In a mathematics examination the average grade wa...

In a mathematics examination the average grade was 82 and the standard deviation was 5. all students with grade from 88 to 94 received grade of B. if the grade are approximately no

Spss, SPSS Assignment 1. Execute the following functions using SP...

SPSS Assignment 1. Execute the following functions using SPSS. a) Enter the following data Case Age Weight Gender

Construct the frequency distribution, 1) Here we are given a raw data and w...

1) Here we are given a raw data and we are supposed to construct the frequency distribution of that data and plot the histogram of it. The dataset contains the values from 1 to

Simple Random Selection, What is the properties of a simple random sample w...

What is the properties of a simple random sample when 50 females are numbered 1 through 50, and males are numbered 51 through 100?

How to calculate midrange in statistics?, Midrange The midrange is the ...

Midrange The midrange is the measure of the center that is the value midway between the highest and the lowest values in the original data set. It is found by adding the highes

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages