Illustration of rank correlation coefficient, Mathematics

Assignment Help:

Illustration of Rank Correlation Coefficient

Sometimes numerical data such refers to the quantifiable variables may be described after which a rank correlation coefficient may be worked out.

Is such a condition, the rank correlation coefficient will be determined after the described variables have been converted into ranks. See the given illustration:

Candidates

Math

r

Accounts

r

d

d2

P

92

1

67

5

-4

16

Q

82

3

88

1

2

4

R

60

5(5.5)

58

7(7.5)

-2

4

S

87

2

80

2

0

0

T

72

4

69

4

0

0

U

60

5(5.5)

77

3

-2.50

6.25

V

52

8

58

7(7.5)

0.5

0.25

W

50

9

60

6

3

9

X

47

10

32

10

0

0

Y

59

7

54

9

-2

4

 

 

 

 

 

 

Σd2 = 43.5

∴ Rank correlation r = 1 - {(6Σd2)/ (n (n2 -1))}

 = 1 -   {(6(43.5))/(10(102 -1))}

 = 1 -  (261/990)

= 0.74 as High positive correlation among mathematics marks and accounts


Related Discussions:- Illustration of rank correlation coefficient

Lucy youth group increased $1, Lucy's youth group increased $1,569 for char...

Lucy's youth group increased $1,569 for charity. They decided to split the money evenly between 3 charities. How much will each charity receive? Divide the money raised through

Coefficient of determination, Coefficient of Determination It refers t...

Coefficient of Determination It refers to the ratio of the explained variation to the total variation and is utilized to measure the strength of the linear relationship. The s

Indicestitle.., Advantages and disadvantages of paasche indices

Advantages and disadvantages of paasche indices

Quan. literacyprofiency, 3.20 euros per kilogram, 1 kilogram =2.2 pounds an...

3.20 euros per kilogram, 1 kilogram =2.2 pounds and current exchange rate is $1=0.9 euros. what is the price per pound?

Multiplying fractions involving negative numbers, Q. Multiplying Fractions ...

Q. Multiplying Fractions Involving Negative Numbers? Ans. If you have only one negative sign, the result is still negative: If you have more than one, just remembe

Concept, uses of maths concept

uses of maths concept

Definition and theorem of derivation, Definition : A function f ( x ) is c...

Definition : A function f ( x ) is called differentiable at x = a if f ′ ( x ) exists & f ( x ) is called differentiable onto an interval if the derivative present for each of the

Permuation and combination, how many words can be formed from letters of wo...

how many words can be formed from letters of word daughter such that word contain 2vowles and 3consonant

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