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)

Ratio, find the ratio of 1:4

find the ratio of 1:4

Reduction-types of word problems related to subtraction, Reduction -when t...

Reduction -when the original amount and the balance or remainder are known, to find the part that has been given away. (e.g., there were 15 toffees in a container, and there are

Leptokurtic-measure of central tendency, Leptokurtic a) A frequency di...

Leptokurtic a) A frequency distribution which is lepkurtic has normally a higher peak than that of the general distribution. The coefficient of kurtosis while determined will

Mathematics Logic & Set Applications, I have a 40 question assignment for t...

I have a 40 question assignment for this topic, will you be able to complete it?

The parallelogram, love is a parallelogram where prove that is a rectangle...

love is a parallelogram where prove that is a rectangle

Basic mathematics, I need help with my homework, I am to the edge right now...

I need help with my homework, I am to the edge right now with this w=5pq/2

Matrix of r, Let R be the relation on S = {1, 2, 3, 4, 5} defined by R =...

Let R be the relation on S = {1, 2, 3, 4, 5} defined by R = {(1,3); (1, 1); (3, 1); (1, 2); (3, 3); (4, 4)}. (b) Write down the matrix of R. (c) Draw the digraph of R.

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