Product moment coefficient (r), Mathematics

Assignment Help:

Product Moment Coefficient (r)

This gives an indication of the strength of the linear relationship among two variables.

                                    1506_Product Moment Coefficient (r).png

Note that this formula can be rearranged to have different outlooks however the resultant is always the similar.

Illustration

Given data was observed and it is required to establish if there exists a relationship among the two.

X

15

24

25

30

35

40

45

65

70

75

Y

60

45

50

35

42

46

28

20

22

15

Solution

Calculate the product moment coefficient of correlation r:

                  114_Product Moment Coefficient (r).png

Hence the correlation coefficient indicates a strong negative linear association among the two variables.


Related Discussions:- Product moment coefficient (r)

Progressions, We will look at three types of progressions called Ar...

We will look at three types of progressions called Arithmetic, Geometric and Harmonic Progression. Before we start looking at the intricacies of these let us unders

Algebra, (x+15)/y=10 where y=5

(x+15)/y=10 where y=5

Linear independence and dependence, It is not the first time that we've loo...

It is not the first time that we've looked this topic. We also considered linear independence and linear dependence back while we were looking at second order differential equation

Book 6b, one bathroom is 0.3m long how long is a row of 8 tiles

one bathroom is 0.3m long how long is a row of 8 tiles

Find the second derivative of the equation, Find the second derivative of t...

Find the second derivative of the below given equation Y= e x cosx

Inverse functions, We have seen that if y is a function of x, then fo...

We have seen that if y is a function of x, then for each given value of x, we can determine uniquely the value of y as per the functional relationship. For some f

Application of probability in business, Application of Probability in Busin...

Application of Probability in Business 1. Business games of chance for illustration, Raffles Lotteries. 2. Insurance firms: this is generally done when a new client or prop

Write Your Message!

Captcha
Free Assignment Quote

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd