## Data Visualization And Data Analytics

#### GET ASSIGNMENT HELP # Statistics Assignment Help With Karl Person Coefficient Of Correlation

## 8.3 Karl Person Coefficient Of Correlation:

As a measure of intensity or degree of linear relationship between two variables, karl pearson a British Biometrician, developed a formula called correlation coefficient.

Correlation coefficient between two random variable x and Y, usually denoted by r(X,Y) or simply rXY is a numerical measure of linear relationship between them and is defined as ### Probable error is an old measure for testing the reliability of an observed correlation coefficient. The reason for taking the factor 0.6745 is that in a normal distribution, the range µ±0.6745 σ covers 50% of the total area. According to secrist, “the probable error of the correlation co-efficientis an amount which if added to and subtracted from the mean correlation coefficient of correlation from a series selected at random will fall.”

If r< P.E>(r). correlation is not at all significant. If r> 6P.E.(r), it is definitely significant. A rigorous method of testing the significance of an observed correlation coefficient will be discussed later in”test of significance” in sampling.

Probable error also enables us to find the limits within which the population correlation can be expected to vary. The limits are r±P.E.(r).

### Email Based Homework Help in Karl Person Coefficient Of Correlation

To Schedule a Karl Person Coefficient Of Correlation tutoring session

### Following are some of the topics in Correlation and Regression in which we provide help:

Online Statistics Help | Statistics Math Help | Statistics probability help | Statistics help | College statistics help | Business statistics help| Elementary statistics help | Probability and statistics help | Statistics tutor | Statistic Homework help | Excel help | Mathematics help | Matlab help | MegaStat help | Minitab help | PHStat2 help | POM/QM help | R code and S-Plus help | SAS help | SPSS Help | Stata help | TDISK help | Tree Plan help | Online Tutoring

Assignment Help Features
Assignment Help Services
• Assignment Help
• Homework Help
• Writing Help  