Formula for Pearson’s r

Provide the formula for the Pearson’s r.

E

Expert

##### Verified

One standard formula for measuring the correlation is the correlation coefficient r, sometimes known as the Pearson’s r. provided two time series, X and Y with means X? and Y?, each with n elements, the formula for r is

S (xi – X?) (yi – Y?)

(S (xi – X?)2 S(yi – Y?)2)1/2

#### Related Questions in Database Management System

• ##### Q :What do you understand by the term

What do you understand by the term deadlock in DBMS? How can it be avoided? How can it be solved once it happens?

• ##### Q :Illustrate briefly the term DBMS

Illustrate briefly the term DBMS?

• ##### Q :Describe dimension tables and fact

Briefly describe the term dimension tables and fact tables?

• ##### Q :Develope Invoice with Total and tax How

How do I take a known dollar (totalcost) such as \$240.00, back out the sales taxes from the known values using the States (VA and WV) sales tax, showing the difference so that I can print an invoice, with the fields Customer name, address, city, state Subtotal, sales tax and totalcost \$240.00. All

• ##### Q :Introduction on the term cube grouping

Provide a brief introduction on the term ‘cube grouping’?

• ##### Q :Illustrates architecture of reporting

Illustrates architecture of reporting services?

• ##### Q :Usage of data stage designer Specify

Specify the use of data stage designer?

• ##### Q :Informatics8x and 7x Write down a brief

Write down a brief note on the differentiation between informatics8x and 7x and what is newest version?

• ##### Q :What is Structured Query Language

Explain what is Structured Query Language (SQL)?

• ##### Q :Illustrates the Radix Sort Illustrates

Illustrates the Radix Sort?