How to find the missing frequencies using contingency table?

Question:

Find the missing frequencies using contingency table?


Given:

(ABC) = 210

(αBC) = 280

(ABγ) = 180

(αBγ) = 240

(AβC) = 250

(αβC) = 160

(Aβγ) = 360

(αβγ) = 32


Solution:

​C

​γ

Total

A

B

(ABC) = 210

(AB​γ) = 180

(AB) = 390

A

β

(AβC) = 250

(Aβ​γ) = 360

​(Aβ) = 610

​A

Total

(AC) = 460

(A​γ) = 540

(A) = 1000

α

B

(αBC) = 280

​(αB​γ) = 240

​(αB) = 520

α

β

(​αβC) = 160

​(​αβ​γ) = 32

(​αβ) = 192

α

Total

(αC) = 440

(α​γ) = 272

​(α) = 712

Total

B

(BC) = 490

​(​​Bγ) = 420

(B) = 910

Total

β

(βC) = 410

(β​γ) = 392

(β) = 802

Total

(C) = 900

(​γ) = 812

N = 1712

Video Solution:


Theory of Attributes