How to find the missing frequencies using contingency table?

Question:

Find the missing frequencies using contingency table?


Given:

(ABC) = 26

(AβC) = 18

(ABγ) = 38

(Aβγ) = 12

(αBC) = 12

(αβC) = 6

(αBγ) = 16

(αβγ) = 9


Solution:

​C

​γ

Total

A

B

(ABC) = 26

(AB​γ) = 38

(AB) = 64​

A

β

(AβC) = 18

(Aβ​γ) = 12

​(Aβ) = 30

​A

Total

(AC) = 44​

(A​γ) = 50

(A) = 94

α

B

(αBC) = 12

​(αB​γ) = 16

​(αB) = 28

α

β

(​αβC) = 6

​(​αβ​γ) = 9

(​αβ) = 15

α

Total

(αC) = 18

(α​γ) = 25

​(α) = 43

Total

B

(BC) = 38

​(​​Bγ) = 54

(B) = 92​

Total

β

(βC) = 24

(β​γ) = 21

(β) = 45

Total

(C) = 62

(​γ) = 75

N = 137​

Video Solution:


Theory of Attributes